Glenwood, AL climate
Glenwood has mild winters and warm summers, with plenty of rain. A typical July afternoon reaches 91°, a January night drops to 36°.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Glenwood feels like
Winter
Spring
Summer
Fall
Glenwood 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 | 59° | 36° | 5.2" | 39° – 54° |
| February | 64° | 39° | 4.7" | 42° – 61° |
| March | 71° | 45° | 5.4" | 51° – 67° |
| April | 77° | 51° | 4.5" | 60° – 68° |
| May | 85° | 59° | 3.8" | 69° – 76° |
| June | 89° | 67° | 5.1" | 74° – 82° |
| July | 91° | 70° | 5.3" | 77° – 83° |
| August | 91° | 69° | 4.9" | 77° – 84° |
| September | 87° | 64° | 4.4" | 73° – 81° |
| October | 79° | 53° | 3.4" | 61° – 71° |
| November | 69° | 42° | 4.3" | 49° – 61° |
| December | 61° | 38° | 5.5" | 42° – 59° |
| Year | 77° | 53° | 56.5" |
“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 Glenwood
Glenwood gets 57 inches of rain and melted snow a year. December is the wettest month and October the driest.
About 257 frost-free days a year
In half of years the last 32° night comes by March 10 and the first one by November 21. That leaves about 257 frost-free days for gardens, longer than 91% of U.S. towns.
Heating and cooling a home in Glenwood
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Glenwood, 48% of that work is heating and 52% 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 Glenwood compares
Compared with every U.S. town and city on TownTapestry, each counted once.
About as warm as it used to be
The last 30 years in Glenwood averaged 0.2° warmer than the 1900s. The biggest change is in December (+1.1°). The shift is smaller than in 100% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Glenwood’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 42° to 61°. July is the most reliable, staying within 6°.
Common questions about Glenwood’s climate
What is the coldest month in Glenwood?
January, with a typical high of 59° and a low of 36°.
What is the hottest month in Glenwood?
July, with a typical high of 91° and a low of 70°. About 68 days a year reach 90°.
When is the first frost in Glenwood?
In half of years the first 32° night comes by November 21, and the last spring frost by March 10.
What is the rainiest month in Glenwood?
December, with 5.5 inches of rain and melted snow. The year totals 57 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Glenwood itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Troy, AL (15 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.