2024 Compare Climate & Weather:
Flagstaff, AZ vs Louisville, CO
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Highlights
On average, there are 242 sunny days per year in Louisville. Flagstaff averages 266 sunny days per year. The US average is 205 sunny days.
Louisville, Colorado gets 17.7 inches of rain, on average, per year. Flagstaff, Arizona gets 20.7 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Louisville averages 69.8 inches of snow per year. Flagstaff averages 81 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
Louisville, Colorado
Summer High: the July high is around 89.1 degrees
Winter Low: the January low is 19.2
Rain: averages 17.7 inches of rain a year
Snow: averages 69.8 inches of snow a year
Flagstaff, Arizona
Summer High: the July high is around 81.7 degrees
Winter Low: the January low is 14.3
Rain: averages 20.7 inches of rain a year
Snow: averages 81 inches of snow a year
BESTPLACES COMFORT INDEX
LouisvilleThe annual BestPlaces Comfort Index for Louisville is 7.2 (10=best), which means it is more comfortable than most places in Colorado.
7.2 / 10
September, June and August are the most pleasant months in Louisville, while December and January are the least comfortable months.
FlagstaffThe annual BestPlaces Comfort Index for Flagstaff is 6.9 (10=best), which means it is one of the least comfortable places in Arizona.
6.9 / 10
June, August and July are the most pleasant months in Flagstaff, while January and February are the least comfortable months.
Today's Weather - Flagstaff, AZ
12 AM PST
Mostly Clear
51°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Tonight | Mostly Clear | 43° / 57° | SW 16 to 20 mph |
| Sunday Night | Slight Chance Rain And Snow Showers then Mostly Clear | 29° / 62° | W 5 to 29 mph |
| Monday Night | Mostly Clear | 34° / 66° | SW 12 to 17 mph |
| Tuesday Night | Clear | 33° / 64° | NW 15 to 21 mph |
| Wednesday Night | Mostly Clear | 31° / 64° | NW 10 to 14 mph |
| Thursday Night | Mostly Clear | 33° / 68° | NW 9 to 13 mph |
| Friday Night | Mostly Clear | 37° / 71° | NW 12 to 16 mph |
Today's Weather - Louisville, CO
12 AM PST
Mostly Clear
49°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Overnight | Mostly Clear | 42° / 77° | NW 2 to 8 mph |
| Sunday Night | Slight Chance Showers And Thunderstorms | 46° / 60° | SSW 13 to 22 mph |
| Monday Night | Slight Chance Showers And Thunderstorms then Partly Cloudy | 41° / 60° | WSW 17 to 30 mph |
| Tuesday Night | Slight Chance Rain Showers then Partly Cloudy | 36° / 59° | W 15 to 22 mph |
| Wednesday Night | Slight Chance Rain Showers then Mostly Cloudy | 37° / 57° | WNW 9 to 15 mph |
| Thursday Night | Chance Showers And Thunderstorms | 40° / 55° | N 8 to 12 mph |
| Friday Night | Chance Showers And Thunderstorms | 41° / 62° | NNW 9 mph |
Average Monthly High / Low (°F)
| Month | Flagstaff, AZ | Louisville, CO |
|---|
| January | 43° / 14° | 48° / 19° |
| February | 45° / 17° | 49° / 21° |
| March | 51° / 22° | 56° / 28° |
| April | 59° / 27° | 63° / 34° |
| May | 69° / 34° | 73° / 43° |
| June | 79° / 40° | 83° / 51° |
| July | 82° / 49° | 89° / 57° |
| August | 79° / 49° | 87° / 56° |
| September | 74° / 40° | 79° / 47° |
| October | 63° / 30° | 67° / 36° |
| November | 52° / 21° | 54° / 26° |
| December | 43° / 14° | 46° / 19° |
Hot, Freezing, Rainy, Snowy Days: Flagstaff / Louisville
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 30 / 28 | 7 / 5 | 6 / 5 |
| February | 0 / 0 | 27 / 25 | 7 / 6 | 6 / 5 |
| March | 0 / 0 | 29 / 22 | 7 / 7 | 5 / 6 |
| April | 0 / 0 | 23 / 12 | 5 / 9 | 3 / 4 |
| May | 0 / 1 | 14 / 1 | 4 / 11 | 0 / 1 |
| June | 1 / 7 | 5 / 0 | 3 / 9 | 0 / 0 |
| July | 2 / 16 | 0 / 0 | 12 / 9 | 0 / 0 |
| August | 0 / 11 | 0 / 0 | 14 / 9 | 0 / 0 |
| September | 0 / 4 | 5 / 1 | 8 / 7 | 0 / 0 |
| October | 0 / 0 | 20 / 9 | 6 / 6 | 1 / 2 |
| November | 0 / 0 | 28 / 22 | 5 / 6 | 3 / 4 |
| December | 0 / 0 | 30 / 29 | 6 / 5 | 6 / 5 |
July is the hottest month for Flagstaff with an average high temperature of 81.7°, which ranks it as one of the coolest places in Arizona. In Flagstaff, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Flagstaff are June, August and July.
July is the hottest month for Louisville with an average high temperature of 89.1°, which ranks it as warmer than most places in Colorado. In Louisville, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Louisville are September, June and May.
January has the coldest nighttime temperatures for Flagstaff with an average of 14.3°. This is one of the coldest places in Arizona.
December has the coldest nighttime temperatures for Louisville with an average of 18.5°. This is one of the warmest places in Colorado.
In Flagstaff, there are 3.4 days annually when the high temperature is over 90°, which is one of the coolest places in Arizona.
In Louisville, there are 37.5 days annually when the high temperature is over 90°, which is hotter than most places in Colorado.
In Flagstaff, there are 210.5 days annually when the nighttime low temperature falls below freezing, which is one of the coldest places in Arizona.
In Louisville, there are 148.8 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in Colorado.
In Flagstaff, there are 7.8 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Arizona.
In Louisville, there are 5.1 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Colorado.
August is the wettest month in Flagstaff with 3.3 inches of rain, and the driest month is June with 0.3 inches. The wettest season is Autumn with 29% of yearly precipitation and 17% occurs in Summer, which is the driest season. The annual rainfall of 20.7 inches in Flagstaff means that it is wetter than most places in Arizona.
May is the wettest month in Louisville with 2.5 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Summer with 37% of yearly precipitation and 11% occurs in Spring, which is the driest season. The annual rainfall of 17.7 inches in Louisville means that it is wetter than most places in Colorado.
August is the rainiest month in Flagstaff with 13.8 days of rain, and June is the driest month with only 2.8 rainy days. There are 83.4 rainy days annually in Flagstaff, which is one of the rainiest places in Arizona. The rainiest season is Autumn when it rains 34% of the time and the driest is Summer with only a 20% chance of a rainy day.
May is the rainiest month in Louisville with 10.5 days of rain, and January is the driest month with only 4.7 rainy days. There are 87.4 rainy days annually in Louisville, which is rainier than most places in Colorado. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 17% chance of a rainy day.
An annual snowfall of 81.0 inches in Flagstaff means that it is one of the snowiest places in Arizona.
An annual snowfall of 69.8 inches in Louisville means that it is snowier than most places in Colorado.
January is the snowiest month in Flagstaff with 19.1 inches of snow, and 8 months of the year have significant snowfall.
March is the snowiest month in Louisville with 13.6 inches of snow, and 9 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 Flagstaff 
2 Reviews
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
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
Start Your Review of Flagstaff
Reviews for Louisville 2 Reviews
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
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
Start Your Review of Louisville
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