Boulder, UT weather

Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month

Weather in Boulder now

Loading the National Weather Service forecast…

Boulder weather by the hour

Boulder weather for the next 7 days

Source: National Weather Service (NOAA) · forecast for the coordinates of Boulder.

This week in Boulder

Sunrise, sunset and moon in Boulder

What is the weather usually like in Boulder?

BSk
Cold semi-arid climate
Köppen climate classification, calculated from the 1991–2020 normals

Average high and low temperature (°F)

16°34°52°70°88°39°21°Jan43°24°Feb53°31°Mar60°36°Apr68°44°May79°54°Jun83°61°Jul81°59°Aug74°52°Sep62°40°Oct49°29°Nov39°21°Dec

Average precipitation (inches)

1.1"Jan1.1"Feb0.9"Mar0.5"Apr0.7"May0.4"Jun1.1"Jul1.7"Aug1.6"Sep1.4"Oct0.6"Nov0.8"Dec

Best time to visit Boulder: June to September, with mild temperatures and fewer rainy days.

Source: NOAA NCEI U.S. Climate Normals 1991–2020, station BOULDER, UT US (USC00420849), adjusted for the elevation of Boulder.

Boulder weather month by month

January
39° 21°F
1.1 in of rain · 3 wet days❄ 15.7 in of snow
February
43° 24°F
1.1 in of rain · 3 wet days❄ 10.8 in of snow
March
53° 31°F
0.9 in of rain · 3 wet days❄ 6.7 in of snow
April
60° 36°F
0.5 in of rain · 2 wet days❄ 2.3 in of snow
May
68° 44°F
0.7 in of rain · 2 wet days❄ 0.4 in of snow
June
79° 54°F
0.4 in of rain · 1 wet days
July
83° 61°F
1.1 in of rain · 3 wet days
August
81° 59°F
1.7 in of rain · 5 wet days
September
74° 52°F
1.6 in of rain · 4 wet days
October
62° 40°F
1.4 in of rain · 3 wet days❄ 0.5 in of snow
November
49° 29°F
0.6 in of rain · 2 wet days❄ 3.5 in of snow
December
39° 21°F
0.8 in of rain · 2 wet days❄ 11.7 in of snow

Sunrise and sunset in Boulder through the year

MonthSunriseSunsetDaylight
January7:38 AM5:31 PM9 h 53 min
February7:13 AM6:05 PM10 h 52 min
March7:34 AM7:34 PM11 h 59 min
April6:48 AM8:02 PM13 h 14 min
May6:13 AM8:30 PM14 h 16 min
June6:01 AM8:51 PM14 h 50 min
July6:14 AM8:49 PM14 h 34 min
August6:40 AM8:20 PM13 h 40 min
September7:06 AM7:35 PM12 h 28 min
October7:33 AM6:49 PM11 h 16 min
November7:05 AM5:15 PM10 h 10 min
December7:32 AM5:09 PM9 h 36 min

Times for the 15th of each month, local time (America/Denver).

What is the weather like in Boulder?

Boulder has a cold semi-arid climate. The warmest month is July, with an average high of 83°F (29°C), and the coldest is December, with average lows of 21°F (-6°C).

It gets about 11.9 inches (301 mm) of precipitation a year. The wettest month is August and the driest is June. Snow is common: about 52 inches fall in an average year.

The best time to visit Boulder is June to September. At 6,703 ft of elevation, nights are cool even in summer. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.

More about Boulder

Weather in towns near Boulder

Questions about the weather in Boulder

What is the hottest month in Boulder?

July, with an average high of 83°F (29°C).

What is the coldest month in Boulder?

December, with an average low of 21°F (-6°C).

How much does it rain in Boulder?

About 11.9 inches (301 mm) a year; the wettest month is August.

Does it snow in Boulder?

Yes, about 52 inches of snow fall in an average year.

When is the best time to visit Boulder?

June to September, when temperatures are most pleasant and rainy days are fewer.

What climate does Boulder have?

Cold semi-arid (Köppen BSk).

What is the weather like in Boulder in November?

Highs average 49°F and lows 29°F, with about 0.6 inches of precipitation.

What time is sunrise in Boulder?

Around 7:05 AM in mid-November, and sunset around 5:15 PM. Today’s exact times are shown above.

Where does this Boulder weather forecast come from?

From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Boulder.

All about Boulder ›

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