2025 Compare Climate & Weather:
Sisters, OR vs Donnelly, ID

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Highlights

On average, there are 207 sunny days per year in Donnelly. Sisters averages 162 sunny days per year. The US average is 205 sunny days.

Donnelly, Idaho gets 23.2 inches of rain, on average, per year. Sisters, Oregon gets 11.4 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Donnelly averages 108.5 inches of snow per year. Sisters averages 16.1 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Donnelly, Idaho
Summer High: the July high is around 79.6 degrees
Winter Low: the January low is 11.5
Rain: averages 23.2 inches of rain a year
Snow: averages 108.5 inches of snow a year

Sisters, Oregon
Summer High: the July high is around 84.2 degrees
Winter Low: the January low is 23.2
Rain: averages 11.4 inches of rain a year
Snow: averages 16.1 inches of snow a year

BestPlaces Comfort Index

Donnelly

The annual BestPlaces Comfort Index for Donnelly is 5.9 (10=best), which means it is one of the least comfortable places in Idaho.

5.9 / 10

July, August and September are the most pleasant months in Donnelly, while December and January are the least comfortable months.

Sisters

The annual BestPlaces Comfort Index for Sisters is 7.0 (10=best), which means it is less comfortable than most places in Oregon.

7 / 10

August, July and September are the most pleasant months in Sisters, while December and January are the least comfortable months.

Today's Weather - Sisters, OR

10 PM PST

Rain Showers

45°F

DAY	DESCRIPTION	HIGH / LOW	WIND
Tonight	Rain Showers	34° / 53°	W 3 mph
Monday Night	Chance Showers And Thunderstorms	34° / 54°	W 2 to 9 mph
Tuesday Night	Partly Cloudy	33° / 57°	W 2 to 10 mph
Wednesday Night	Mostly Clear	30° / 66°	W 1 to 8 mph
Thursday Night	Mostly Cloudy	38° / 66°	W 1 to 6 mph
Friday Night	Slight Chance Rain Showers	40° / 61°	W 2 to 8 mph
Saturday Night	Partly Cloudy	35° / 63°	W 1 to 9 mph

Today's Weather - Donnelly, ID

10 PM PST

Chance Showers And Thunderstorms

52°F

DAY	DESCRIPTION	HIGH / LOW	WIND
Tonight	Chance Showers And Thunderstorms	40° / 55°	S 6 mph
Monday Night	Chance Showers And Thunderstorms then Chance Rain And Snow Showers	30° / 51°	WNW 1 to 9 mph
Tuesday Night	Slight Chance Rain Showers then Partly Cloudy	30° / 54°	N 2 to 9 mph
Wednesday Night	Partly Cloudy	30° / 58°	N 2 to 7 mph
Thursday Night	Mostly Cloudy	36° / 54°	N 1 to 6 mph
Friday Night	Chance Rain Showers	34° / 56°	N 1 to 5 mph
Saturday Night	Chance Rain Showers	34° / 56°	NNW 2 to 7 mph

Average Monthly High / Low (°F)

Month	Sisters, OR	Donnelly, ID
January	41° / 23°	30° / 12°
February	45° / 24°	35° / 12°
March	52° / 27°	42° / 19°
April	58° / 30°	51° / 26°
May	66° / 36°	60° / 33°
June	74° / 41°	69° / 39°
July	84° / 46°	80° / 44°
August	84° / 45°	80° / 42°
September	75° / 38°	70° / 34°
October	63° / 32°	57° / 26°
November	48° / 27°	39° / 20°
December	40° / 21°	29° / 11°

Hot, Freezing, Rainy, Snowy Days: Sisters / Donnelly

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	26 / 30	9 / 14	3 / 10
February	0 / 0	23 / 27	7 / 11	3 / 8
March	0 / 0	23 / 29	7 / 12	1 / 6
April	0 / 0	19 / 26	7 / 12	1 / 3
May	0 / 0	11 / 13	7 / 12	0 / 0
June	1 / 0	3 / 4	5 / 10	0 / 0
July	9 / 2	1 / 1	3 / 5	0 / 0
August	8 / 2	1 / 1	3 / 5	0 / 0
September	2 / 0	6 / 12	3 / 6	0 / 0
October	0 / 0	17 / 25	5 / 8	0 / 1
November	0 / 0	22 / 27	8 / 14	2 / 8
December	0 / 0	27 / 30	9 / 14	4 / 11

July is the hottest month for Sisters with an average high temperature of 84.2°, which ranks it as warmer than most places in Oregon. In Sisters, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sisters are September, June and August.

August is the hottest month for Donnelly with an average high temperature of 79.6°, which ranks it as one of the coolest places in Idaho. In Donnelly, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Donnelly are July, August and September.

December has the coldest nighttime temperatures for Sisters with an average of 21.4°. This is colder than most places in Oregon.

December has the coldest nighttime temperatures for Donnelly with an average of 11.4°. This is colder than most places in Idaho.

In Sisters, there are 19.7 days annually when the high temperature is over 90°, which is hotter than most places in Oregon.

In Donnelly, there are 3.9 days annually when the high temperature is over 90°, which is one of the coolest places in Idaho.

In Sisters, there are 178.7 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Oregon.

In Donnelly, there are 225.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Idaho.

In Sisters, there are 2.8 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Oregon.

In Donnelly, there are 18.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Idaho.

January is the wettest month in Sisters with 1.6 inches of rain, and the driest month is August with 0.4 inches. The wettest season is Spring with 37% of yearly precipitation and 15% occurs in Autumn, which is the driest season. The annual rainfall of 11.4 inches in Sisters means that it is one of the driest places in Oregon.

December is the wettest month in Donnelly with 2.9 inches of rain, and the driest month is July with 0.7 inches. The wettest season is Spring with 33% of yearly precipitation and 14% occurs in Autumn, which is the driest season. The annual rainfall of 23.2 inches in Donnelly means that it is wetter than most places in Idaho.

December is the rainiest month in Sisters with 9.1 days of rain, and August is the driest month with only 2.7 rainy days. There are 72.8 rainy days annually in Sisters, which is one of the least rainy places in Oregon. The rainiest season is Spring when it rains 34% of the time and the driest is Autumn with only a 15% chance of a rainy day.

November is the rainiest month in Donnelly with 14.3 days of rain, and July is the driest month with only 4.8 rainy days. There are 123.3 rainy days annually in Donnelly, which is rainier than most places in Idaho. The rainiest season is Spring when it rains 32% of the time and the driest is Autumn with only a 16% chance of a rainy day.

An annual snowfall of 16.1 inches in Sisters means that it is snowier than most places in Oregon.

An annual snowfall of 108.5 inches in Donnelly means that it is one of the snowiest places in Idaho.

December is the snowiest month in Sisters with 4.8 inches of snow, and 5 months of the year have significant snowfall.

December is the snowiest month in Donnelly with 28.5 inches of snow, and 8 months of the year have significant snowfall.

DID YOU KNOW?

Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.

Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.

Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.

Reviews for Sisters 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More

| Reply

NC For Me · Apex, NC

re:

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More

| Reply

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Reviews for Donnelly 2 Reviews

Jill · Sherman Oaks, CA

re:

Over 16 years ago

Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More

| Reply

NC For Me · Apex, NC

re:

Over 16 years ago

Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More

| Reply

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2025 Compare Climate & Weather:
Sisters, OR vs Donnelly, ID

Highlights

Weather Highlights

BestPlaces Comfort Index

Today's Weather - Sisters, OR

Today's Weather - Donnelly, ID

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Sisters / Donnelly

December has the coldest nighttime temperatures for Sisters with an average of 21.4°. This is colder than most places in Oregon.

December has the coldest nighttime temperatures for Donnelly with an average of 11.4°. This is colder than most places in Idaho.

In Sisters, there are 19.7 days annually when the high temperature is over 90°, which is hotter than most places in Oregon.

In Donnelly, there are 3.9 days annually when the high temperature is over 90°, which is one of the coolest places in Idaho.

In Sisters, there are 178.7 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Oregon.

In Donnelly, there are 225.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Idaho.

In Sisters, there are 2.8 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Oregon.

In Donnelly, there are 18.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Idaho.

An annual snowfall of 16.1 inches in Sisters means that it is snowier than most places in Oregon.

An annual snowfall of 108.5 inches in Donnelly means that it is one of the snowiest places in Idaho.

December is the snowiest month in Sisters with 4.8 inches of snow, and 5 months of the year have significant snowfall.

December is the snowiest month in Donnelly with 28.5 inches of snow, and 8 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Sisters 2 Reviews

Reviews for Donnelly 2 Reviews

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2025 Compare Climate & Weather:Sisters, OR vs Donnelly, ID

Highlights

Weather Highlights

BestPlaces Comfort Index

Today's Weather - Sisters, OR

Today's Weather - Donnelly, ID

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Sisters / Donnelly

December has the coldest nighttime temperatures for Sisters with an average of 21.4°. This is colder than most places in Oregon.December has the coldest nighttime temperatures for Donnelly with an average of 11.4°. This is colder than most places in Idaho.

In Sisters, there are 19.7 days annually when the high temperature is over 90°, which is hotter than most places in Oregon.In Donnelly, there are 3.9 days annually when the high temperature is over 90°, which is one of the coolest places in Idaho.

In Sisters, there are 178.7 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Oregon.In Donnelly, there are 225.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Idaho.

In Sisters, there are 2.8 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Oregon.In Donnelly, there are 18.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Idaho.

An annual snowfall of 16.1 inches in Sisters means that it is snowier than most places in Oregon.An annual snowfall of 108.5 inches in Donnelly means that it is one of the snowiest places in Idaho.

December is the snowiest month in Sisters with 4.8 inches of snow, and 5 months of the year have significant snowfall.December is the snowiest month in Donnelly with 28.5 inches of snow, and 8 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Sisters 2 Reviews

Reviews for Donnelly 2 Reviews

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Zips In Sisters, Oregon

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2025 Compare Climate & Weather:
Sisters, OR vs Donnelly, ID

December has the coldest nighttime temperatures for Sisters with an average of 21.4°. This is colder than most places in Oregon.

December has the coldest nighttime temperatures for Donnelly with an average of 11.4°. This is colder than most places in Idaho.

In Sisters, there are 19.7 days annually when the high temperature is over 90°, which is hotter than most places in Oregon.

In Donnelly, there are 3.9 days annually when the high temperature is over 90°, which is one of the coolest places in Idaho.

In Sisters, there are 178.7 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Oregon.

In Donnelly, there are 225.6 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Idaho.

In Sisters, there are 2.8 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Oregon.

In Donnelly, there are 18.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Idaho.

An annual snowfall of 16.1 inches in Sisters means that it is snowier than most places in Oregon.

An annual snowfall of 108.5 inches in Donnelly means that it is one of the snowiest places in Idaho.

December is the snowiest month in Sisters with 4.8 inches of snow, and 5 months of the year have significant snowfall.

December is the snowiest month in Donnelly with 28.5 inches of snow, and 8 months of the year have significant snowfall.