St. Mary's, CO weather

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

Weather in St. Mary's now

Loading the National Weather Service forecast…

St. Mary's weather by the hour

St. Mary's weather for the next 7 days

Source: National Weather Service (NOAA) · forecast for the coordinates of St. Mary's.

This week in St. Mary's

Sunrise, sunset and moon in St. Mary's

What is the weather usually like in St. Mary's?

Dfc
Subarctic climate
Köppen climate classification, calculated from the 1991–2020 normals

Average high and low temperature (°F)

6°23°40°57°74°32°12°Jan31°11°Feb38°17°Mar43°23°Apr52°31°May64°40°Jun69°45°Jul67°44°Aug61°37°Sep50°28°Oct39°18°Nov32°12°Dec

Average precipitation (inches)

1.0"Jan1.2"Feb2.0"Mar2.8"Apr2.1"May1.6"Jun2.8"Jul2.6"Aug1.6"Sep1.4"Oct1.3"Nov1.2"Dec

Best time to visit St. Mary's: June to September, with mild temperatures and fewer rainy days.

Source: NOAA NCEI U.S. Climate Normals 1991–2020, station CABIN CREEK, CO US (USC00051186), adjusted for the elevation of St. Mary's.

St. Mary's weather month by month

January
32° 12°F
1.0 in of rain · 4 wet days❄ 15.9 in of snow
February
31° 11°F
1.2 in of rain · 4 wet days❄ 19.3 in of snow
March
38° 17°F
2.0 in of rain · 6 wet days❄ 24.9 in of snow
April
43° 23°F
2.8 in of rain · 7 wet days❄ 28.4 in of snow
May
52° 31°F
2.1 in of rain · 6 wet days❄ 11.9 in of snow
June
64° 40°F
1.6 in of rain · 4 wet days❄ 0.3 in of snow
July
69° 45°F
2.8 in of rain · 8 wet days
August
67° 44°F
2.6 in of rain · 8 wet days❄ 0.1 in of snow
September
61° 37°F
1.6 in of rain · 5 wet days❄ 2.1 in of snow
October
50° 28°F
1.4 in of rain · 4 wet days❄ 10.4 in of snow
November
39° 18°F
1.3 in of rain · 4 wet days❄ 20.1 in of snow
December
32° 12°F
1.2 in of rain · 4 wet days❄ 20.3 in of snow

Sunrise and sunset in St. Mary's through the year

MonthSunriseSunsetDaylight
January7:20 AM5:03 PM9 h 43 min
February6:53 AM5:40 PM10 h 46 min
March7:12 AM7:10 PM11 h 58 min
April6:22 AM7:42 PM13 h 19 min
May5:45 AM8:12 PM14 h 26 min
June5:32 AM8:34 PM15 h 1 min
July5:45 AM8:31 PM14 h 45 min
August6:13 AM8:00 PM13 h 47 min
September6:42 AM7:12 PM12 h 30 min
October7:11 AM6:24 PM11 h 12 min
November6:46 AM4:48 PM10 h 2 min
December7:15 AM4:40 PM9 h 25 min

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

What is the weather like in St. Mary's?

St. Mary's has a subarctic climate. The warmest month is July, with an average high of 69°F (21°C), and the coldest is February, with average lows of 11°F (-12°C).

It gets about 21.7 inches (550 mm) of precipitation a year. The wettest month is April and the driest is January. Snow is common: about 154 inches fall in an average year.

The best time to visit St. Mary's is June to September. At 10,079 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 St. Mary's

Weather in towns near St. Mary's

Questions about the weather in St. Mary's

What is the hottest month in St. Mary's?

July, with an average high of 69°F (21°C).

What is the coldest month in St. Mary's?

February, with an average low of 11°F (-12°C).

How much does it rain in St. Mary's?

About 21.7 inches (550 mm) a year; the wettest month is April.

Does it snow in St. Mary's?

Yes, about 154 inches of snow fall in an average year.

When is the best time to visit St. Mary's?

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

What climate does St. Mary's have?

Subarctic (Köppen Dfc).

What is the weather like in St. Mary's in November?

Highs average 39°F and lows 18°F, with about 1.3 inches of precipitation.

What time is sunrise in St. Mary's?

Around 6:46 AM in mid-November, and sunset around 4:48 PM. Today’s exact times are shown above.

Where does this St. Mary's weather forecast come from?

From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of St. Mary's.

All about St. Mary's ›

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