Birmingham, Alabama Climate
Birmingham weather by month — average highs and lows, rainfall, all-time records, and the warming record since 1930
- Hottest month
- 91°FJuly average high
- Coldest month
- 35°FJanuary average low
- Precipitation
- 56.6 ina year
- Snowfall
- 1.4 ina year
1991–2020 NOAA climate normals
At 8:30 AM CDT on Sep 21 it was 80°F in Birmingham — 13° above the 67°F typical for that hour (estimated from the Sep 21 normal high of 84°F and low of 63°F, interpolated from the monthly normals).
Birmingham weather by month
Average high, low, and rainfall for every month, from Birmingham’s 1991–2020 climate normals, the standard 30-year reference period. Each band runs from the month’s average low to its average high: a tall band is a big day-to-night swing.
| Month | Avg High | Avg Low | Rainfall |
|---|---|---|---|
| January | 55°F | 35°F | 5.0 in |
| February | 59°F | 38°F | 5.0 in |
| March | 67°F | 45°F | 5.7 in |
| April | 75°F | 52°F | 5.1 in |
| May | 82°F | 61°F | 4.9 in |
| June | 88°F | 69°F | 4.8 in |
| July | 91°F | 72°F | 5.4 in |
| August | 91°F | 71°F | 4.3 in |
| September | 86°F | 65°F | 4.0 in |
| October | 76°F | 54°F | 3.3 in |
| November | 65°F | 43°F | 4.2 in |
| December | 57°F | 38°F | 4.9 in |
| Annual | 74°F | 54°F | 56.6 in |
Birmingham’s warming record since 1930
Not what a typical year looks like, but how the typical year has changed. Each stripe is one complete year’s average temperature at the station, 1930 to 2025, colored against the mean of those years: blue for cooler years, red for warmer ones. The figure under the stripes is the least-squares trend line fitted to 1930–2025 — Birmingham averages about 1.0°F warmer by that trend than in 1930.
Compared with the national rankingThe fastest-warming cities ranking fits every city to the same years, 1970–2025, so rates compare like for like. Over that window Birmingham warms at +0.70°F per decade, #21 of 66. The figure above uses the station’s own record, 1930–2025, so the two rates differ.
Birmingham rainfall by month
Birmingham averages 56.6 inches of precipitation a year. The wettest month is March and the driest is October.
Birmingham also averages 1.4 inches of snowfall a year.
Birmingham temperature records
- All-time record high
- 107°Fset July 29, 1930
- All-time record low
- -6°Fset January 21, 1985
Records are drawn from the nearest long-term weather station’s full daily history, so they capture the most extreme single day Birmingham has recorded — not a typical seasonal high or low.
Frequently asked
- What is the hottest month in Birmingham?
- July is Birmingham's hottest month, with the highest average daily high of the year. The month-by-month table above shows Birmingham's exact average high and low for each month, based on the 1991–2020 climate normals — the standard 30-year reference period meteorologists use.
- What is the coldest month in Birmingham?
- January is Birmingham's coldest month, with the lowest average daily low of the year. The averages-by-month chart above gives the exact average high and low for every month, so you can see how cold a typical winter day runs.
- How much does it rain in Birmingham?
- Birmingham's total annual precipitation and its wettest and driest months are shown in the rainfall-by-month section above. Those figures are 1991–2020 normals — the average monthly precipitation total across that 30-year window — so they reflect a typical year rather than any single wet or dry season.
- What months are best to visit Birmingham?
- The most comfortable months in Birmingham are usually the shoulder seasons — spring and fall — when temperatures sit between the summer peak and winter low and rainfall is moderate. Compare the average high, low, and precipitation for each month in the table above to pick the window that fits the weather you want.
- Has Birmingham gotten hotter?
- Yes. The warming-stripes chart above plots Birmingham's annual mean temperature for every complete year of station data from 1930 to 2025, and the trend line fitted to 1930–2025 rises about 1.0°F (+0.11°F per decade) — recent decades average warmer than the start of that window.
- What is the record high temperature in Birmingham?
- Birmingham's all-time record high — the hottest single day in the station record — is shown in the records section above, along with the date it occurred. Records are drawn from the nearest long-term weather station's full daily history, which begins in 1930, so they capture the most extreme heat on record, not just a typical summer day.
- What is the record low temperature in Birmingham?
- Birmingham's all-time record low and the date it was set appear in the records section above. Like the record high, it comes from the station's full daily history back to 1930, so it reflects the coldest day on record rather than an average winter low.