Lodge Grass, MT climate
Lodge Grass has cold winters and warm summers, with very little rain. A typical July afternoon reaches 89°, a January night drops to 10°.
NOAA 1991-2020 climate normals Updated once a decade8° warmer than normal today. The forecast high is 77°, and a typical Sep 30 in Lodge Grass peaks around 69°.Live forecast: National Weather Service · Normal: NOAA 1991–2020
What a year in Lodge Grass feels like
Winter
Spring
Summer
Fall
Lodge Grass weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 36° | 10° | 0.6" | 14° – 33° |
| February | 39° | 13° | 0.7" | 8° – 36° |
| March | 50° | 22° | 0.9" | 25° – 46° |
| April | 59° | 30° | 1.9" | 39° – 49° |
| May | 68° | 40° | 2.6" | 49° – 59° |
| June | 79° | 48° | 2.0" | 57° – 69° |
| July | 89° | 54° | 1.1" | 60° – 78° |
| August | 88° | 51° | 0.8" | 63° – 75° |
| September | 76° | 42° | 1.5" | 54° – 66° |
| October | 61° | 31° | 1.5" | 37° – 52° |
| November | 47° | 20° | 0.8" | 22° – 44° |
| December | 36° | 11° | 0.6" | 13° – 30° |
| Year | 61° | 31° | 15.0" |
“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 Lodge Grass
Lodge Grass gets 15 inches of rain and melted snow a year. May is the wettest month and January the driest.
About 117 frost-free days a year
In half of years the last 32° night comes by May 21 and the first one by September 17. That leaves about 117 frost-free days for gardens, shorter than 98% of U.S. towns.
Heating and cooling a home in Lodge Grass
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Lodge Grass, 94% of that work is heating and 6% 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.
How Lodge Grass 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 Lodge Grass averaged 1.4° warmer than the 1900s. The biggest change is in January (+4.1°). The shift is larger than in 61% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Lodge Grass’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 8° to 36°. May is the most reliable, staying within 10°.
Common questions about Lodge Grass’s climate
What is the coldest month in Lodge Grass?
January, with a typical high of 36° and a low of 10°.
What is the hottest month in Lodge Grass?
July, with a typical high of 89° and a low of 54°. About 39 days a year reach 90°.
When is the first frost in Lodge Grass?
In half of years the first 32° night comes by September 17, and the last spring frost by May 21.
What is the rainiest month in Lodge Grass?
May, with 2.6 inches of rain and melted snow. The year totals 15 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Lodge Grass itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Wyola 1 Sw, MT (13 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.