Granger, WA climate
Granger has chilly winters and warm summers, with very little rain. A typical July afternoon reaches 90°, a January night drops to 27°, and about 10 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Granger feels like
Winter
Spring
Summer
Fall
Granger 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 | 40° | 27° | 1.0" | 3.2" | 7 | 9 | 23° – 38° |
| February | 47° | 28° | 0.7" | 1.2" | 5 | 2 | 24° – 44° |
| March | 57° | 33° | 0.6" | 0.4" | 5 | 0 | 36° – 50° |
| April | 65° | 39° | 0.6" | 0 | 5 | 0 | 47° – 58° |
| May | 74° | 47° | 0.8" | 0 | 6 | 0 | 55° – 66° |
| June | 81° | 53° | 0.6" | 0 | 4 | 0 | 63° – 75° |
| July | 90° | 59° | 0.2" | 0 | 2 | 0 | 67° – 79° |
| August | 89° | 57° | 0.2" | 0 | 2 | 0 | 67° – 76° |
| September | 79° | 49° | 0.3" | 0 | 3 | 0 | 60° – 68° |
| October | 65° | 39° | 0.7" | 0 | 6 | 0 | 46° – 58° |
| November | 49° | 31° | 0.9" | 1.7" | 7 | 1 | 34° – 46° |
| December | 39° | 26° | 1.2" | 3.4" | 8 | 7 | 26° – 38° |
| Year | 64° | 41° | 7.7" | 9.9" | 59 | 20 |
“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 Granger
Granger gets 8 inches of rain and melted snow a year. December is the wettest month and July the driest. Rain or snow falls on about 59 days a year. Snow covers the ground about 20 days of the year.
About 155 frost-free days a year
In half of years the last 32° night comes by May 4 and the first one by October 10. That leaves about 155 frost-free days for gardens, shorter than 76% of U.S. towns.
Heating and cooling a home in Granger
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Granger, 92% of that work is heating and 8% 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 Granger 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 Granger averaged 1.0° warmer than the 1900s. The biggest change is in January (+3.2°). The shift is smaller than in 72% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Granger’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 24° to 44°. September is the most reliable, staying within 8°.
Common questions about Granger’s climate
What is the coldest month in Granger?
December, with a typical high of 39° and a low of 26°.
What is the hottest month in Granger?
July, with a typical high of 90° and a low of 59°. About 30 days a year reach 90°.
How much snow does Granger get?
About 10 inches in a normal winter, most of it in December.
When is the first frost in Granger?
In half of years the first 32° night comes by October 10, and the last spring frost by May 4.
What is the rainiest month in Granger?
December, with 1.2 inches of rain and melted snow. The year totals 8 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Granger itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Moxee City 10 E, WA (11 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.