Imperial, TX climate
Imperial has mild winters and hot summers, with very little rain. A typical July afternoon reaches 98°, a January night drops to 32°, and about 1 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Imperial feels like
Winter
Spring
Summer
Fall
Imperial 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 | 62° | 32° | 0.6" | 0.9" | 3 | 0 | 41° – 52° |
| February | 68° | 37° | 0.6" | 0.1" | 3 | 0 | 47° – 58° |
| March | 76° | 44° | 0.5" | 0 | 2 | 0 | 54° – 66° |
| April | 84° | 51° | 0.7" | 0 | 2 | 0 | 61° – 73° |
| May | 92° | 61° | 1.7" | 0 | 4 | 0 | 70° – 82° |
| June | 98° | 70° | 1.5" | 0 | 4 | 0 | 80° – 90° |
| July | 98° | 72° | 1.4" | 0 | 4 | 0 | 81° – 89° |
| August | 98° | 71° | 1.5" | 0 | 4 | 0 | 81° – 90° |
| September | 91° | 64° | 1.7" | 0 | 5 | 0 | 72° – 83° |
| October | 82° | 53° | 1.4" | 0 | 3 | 0 | 65° – 73° |
| November | 71° | 40° | 0.7" | 0 | 2 | 0 | 50° – 61° |
| December | 62° | 33° | 0.7" | 0.4" | 3 | 0 | 43° – 51° |
| Year | 82° | 52° | 12.9" | 1.4" | 39 | 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 Imperial
Imperial gets 13 inches of rain and melted snow a year. May is the wettest month and March the driest. Rain or snow falls on about 39 days a year.
About 214 frost-free days a year
In half of years the last 32° night comes by April 2 and the first one by November 3. That leaves about 214 frost-free days for gardens, longer than 80% of U.S. towns.
Heating and cooling a home in Imperial
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Imperial, 50% of that work is heating and 50% is cooling.
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 Imperial 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 Imperial averaged 1.8° warmer than the 1900s. The biggest change is in March (+3.0°). The shift is larger than in 85% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Imperial’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. April swings the most: between 1991 and 2020 its average temperature ranged from 61° to 73°. December is the most reliable, staying within 8°.
Common questions about Imperial’s climate
What is the coldest month in Imperial?
January, with a typical high of 62° and a low of 32°.
What is the hottest month in Imperial?
July, with a typical high of 98° and a low of 72°. About 145 days a year reach 90°.
How much snow does Imperial get?
About 1 inches in a normal winter, most of it in January.
When is the first frost in Imperial?
In half of years the first 32° night comes by November 3, and the last spring frost by April 2.
What is the rainiest month in Imperial?
May, with 1.7 inches of rain and melted snow. The year totals 13 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Imperial itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Grandfalls 3sse, TX (8 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.