Clancy, MT climate
Clancy has cold, snowy winters and pleasant summers, with very little rain. A typical July afternoon reaches 82°, a January night drops to 13°, and about 37 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Clancy feels like
Winter
Spring
Summer
Fall
Clancy weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 34° | 13° | 0.5" | 6.6" | 7 | 18 | 15° – 30° |
| February | 36° | 14° | 0.6" | 6.6" | 7 | 11 | 11° – 34° |
| March | 46° | 22° | 0.8" | 4.6" | 7 | 5 | 24° – 41° |
| April | 53° | 28° | 1.5" | 2.9" | 9 | 1 | 35° – 46° |
| May | 63° | 36° | 2.2" | 0.1" | 11 | 0 | 44° – 54° |
| June | 71° | 43° | 2.6" | 0 | 12 | 0 | 52° – 64° |
| July | 82° | 49° | 1.3" | 0 | 8 | 0 | 55° – 72° |
| August | 81° | 47° | 1.2" | 0.3" | 6 | 0 | 58° – 68° |
| September | 70° | 39° | 1.2" | 0.2" | 6 | 0 | 50° – 59° |
| October | 55° | 30° | 1.1" | 2.8" | 7 | 2 | 35° – 49° |
| November | 41° | 21° | 0.8" | 5.4" | 7 | 6 | 23° – 39° |
| December | 32° | 13° | 0.6" | 7.7" | 7 | 14 | 14° – 29° |
| Year | 55° | 30° | 14.3" | 37.2" | 91 | 57 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Clancy
Clancy gets 14 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 91 days a year. Snow covers the ground about 57 days of the year.
About 81 frost-free days a year
In half of years the last 32° night comes by June 18 and the first one by September 5. That leaves about 81 frost-free days for gardens, shorter than 100% of U.S. towns.
Heating and cooling a home in Clancy
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Clancy, 99% of that work is heating and 1% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Clancy and its neighbors
Clancy borders 2 towns with climate data. January nights across them vary by 2.3°. Jefferson City has the coldest January nights (13°) and Montana City the hottest July afternoons (83°). Clancy’s January low is 13° and its July high 82°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Clancy compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Clancy averaged 1.4° warmer than the 1900s. The biggest change is in January (+4.4°). The shift is larger than in 63% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Clancy’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 11° to 34°. September is the most reliable, staying within 9°.
Common questions about Clancy’s climate
What is the coldest month in Clancy?
December, with a typical high of 32° and a low of 13°.
What is the hottest month in Clancy?
July, with a typical high of 82° and a low of 49°. About 11 days a year reach 90°.
How much snow does Clancy get?
About 37 inches in a normal winter, most of it in December.
When is the first frost in Clancy?
In half of years the first 32° night comes by September 5, and the last spring frost by June 18.
What is the rainiest month in Clancy?
June, with 2.6 inches of rain and melted snow. The year totals 14 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Clancy itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Helena Rgnl Airport, MT (11 mi, snow) and Tizer Gardens, MT (5 mi, frost, heat and degree days). Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.