The remote server returned an error: (400) Bad Request.The remote server returned an error: (400) Bad Request. 2025 Compare Climate & Weather: Black Diamond, WA vs Nampa, ID

2025 Compare Climate & Weather:
Black Diamond, WA vs Nampa, ID

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Highlights

On average, there are 207 sunny days per year in Nampa. Black Diamond averages 156 sunny days per year. The US average is 205 sunny days.

Nampa, Idaho gets 10.7 inches of rain, on average, per year. Black Diamond, Washington gets 50 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Nampa averages 9.2 inches of snow per year. Black Diamond averages 4.7 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Nampa, Idaho
Summer High: the July high is around 91.3 degrees
Winter Low: the January low is 23.6
Rain: averages 10.7 inches of rain a year
Snow: averages 9.2 inches of snow a year

Black Diamond, Washington
Summer High: the July high is around 75.7 degrees
Winter Low: the January low is 34.7
Rain: averages 50 inches of rain a year
Snow: averages 4.7 inches of snow a year

BestPlaces Comfort Index
Nampa

The annual BestPlaces Comfort Index for Nampa is 7.3 (10=best), which means it is one of the most pleasant places in Idaho.

7.3 / 10
June, September and May are the most pleasant months in Nampa, while January and December are the least comfortable months.

Black Diamond

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

7 / 10
August, July and September are the most pleasant months in Black Diamond, while December and January are the least comfortable months.

Average Monthly High / Low (°F)
MonthBlack Diamond, WANampa, ID
January46° / 35°39° / 24°
February49° / 34°46° / 27°
March53° / 37°58° / 33°
April58° / 40°65° / 38°
May64° / 45°74° / 45°
June70° / 49°83° / 52°
July76° / 53°91° / 58°
August76° / 52°90° / 56°
September70° / 48°80° / 47°
October59° / 42°67° / 38°
November50° / 38°50° / 30°
December44° / 33°39° / 23°
Hot, Freezing, Rainy, Snowy Days: Black Diamond / Nampa
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 010 / 2520 / 91 / 3
February0 / 011 / 2116 / 81 / 1
March0 / 07 / 1319 / 90 / 1
April0 / 02 / 617 / 80 / 0
May0 / 20 / 115 / 70 / 0
June1 / 60 / 011 / 50 / 0
July2 / 190 / 06 / 20 / 0
August1 / 170 / 06 / 20 / 0
September0 / 40 / 19 / 30 / 0
October0 / 02 / 715 / 50 / 0
November0 / 06 / 1820 / 101 / 1
December0 / 012 / 2619 / 101 / 3
August is the hottest month for Black Diamond with an average high temperature of 76.4°, which ranks it as cooler than most places in Washington. In Black Diamond, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Black Diamond are August, July and September.

July is the hottest month for Nampa with an average high temperature of 91.3°, which ranks it as warmer than most places in Idaho. In Nampa, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Nampa are September, May and June.
December has the coldest nighttime temperatures for Black Diamond with an average of 33.2°. This is about average compared to other places in Washington.

December has the coldest nighttime temperatures for Nampa with an average of 22.7°. This is warmer than most places in Idaho.

In Black Diamond, there are 3.3 days annually when the high temperature is over 90°, which is about average compared to other places in Washington.

In Nampa, there are 47.8 days annually when the high temperature is over 90°, which is hotter than most places in Idaho.

In Black Diamond, there are 49.9 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Washington.

In Nampa, there are 116.6 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Idaho.

In Black Diamond, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Washington.

In Nampa, there are 2.8 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Idaho.

November is the wettest month in Black Diamond with 7.9 inches of rain, and the driest month is July with 1.3 inches. The wettest season is Spring with 34% of yearly precipitation and 11% occurs in Autumn, which is the driest season. The annual rainfall of 50.0 inches in Black Diamond means that it is wetter than most places in Washington.


December is the wettest month in Nampa with 1.5 inches of rain, and the driest month is July with 0.3 inches. The wettest season is Spring with 33% of yearly precipitation and 12% occurs in Autumn, which is the driest season. The annual rainfall of 10.7 inches in Nampa means that it is drier than most places in Idaho.

November is the rainiest month in Black Diamond with 20.3 days of rain, and August is the driest month with only 5.8 rainy days. There are 173.6 rainy days annually in Black Diamond, which is rainier than most places in Washington. The rainiest season is Spring when it rains 31% of the time and the driest is Autumn with only a 14% chance of a rainy day.

December is the rainiest month in Nampa with 10.4 days of rain, and July is the driest month with only 2.3 rainy days. There are 80.1 rainy days annually in Nampa, which is less rainy than most places in Idaho. The rainiest season is Spring when it rains 34% of the time and the driest is Autumn with only a 12% chance of a rainy day.

An annual snowfall of 4.7 inches in Black Diamond means that it is about average compared to other places in Washington.

An annual snowfall of 9.2 inches in Nampa means that it is one of the least snowy places in Idaho.
November is the snowiest month in Black Diamond with 1.4 inches of snow, and 4 months of the year have significant snowfall.

December is the snowiest month in Nampa with 4.0 inches of snow, and 4 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 Black Diamond    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

Start Your Review of Black Diamond

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Reviews for Nampa    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

Start Your Review of Nampa

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Zips In Black Diamond, Washington
98010
Zips In NAMPA, IDAHO
83686, 83651, 83687
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