Union Springs, Alabama climate: Normal weather by month, frost dates and records
Union Springs's normal year runs from 35°F January nights to 89°F July afternoons, with 57.2 inches of precipitation and less than an inch of snow (0.6 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.4°C, January lows of 1°C, July highs of 32°C, 1,453 mm of precipitation a year.
- NOAA stationUnion Springs (9 mi S)
- Station IDUSC00018438
- Location32.01°N 85.75°W
- Elevation440 ft (134 m)
- From the center9 miles
- Population3,157
On October 23, the normal high in Union Springs is 75°F and the normal low 48°F, and the chance of measurable rain or snow is 17%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Union Springs.
- Jan 58° 35°
- Feb 62° 38°
- Mar 69° 43°
- Apr 75° 49°
- May 82° 58°
- Jun 87° 66°
- Jul 89° 70°
- Aug 89° 69°
- Sep 85° 64°
- Oct 77° 52°
- Nov 67° 41°
- Dec 60° 37°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Union Springs each month?
July is the warmest month, with normal highs of 89°F; January the coldest, with normal lows of 35°F. The most precipitation falls in July (5.90 in), the least in October (3.41 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 58°F | 35°F | 46.3°F | 5.02 | 9 | <1 | 17 | 10 h 20 min |
| February | 62°F | 38°F | 49.7°F | 4.72 | 8 | <1 | 13 | 11 h |
| March | 69°F | 43°F | 56.1°F | 5.47 | 8 | <1 | 6 | 12 h |
| April | 75°F | 49°F | 62.0°F | 4.57 | 7 | <1 | 1 | 13 h |
| May | 82°F | 58°F | 69.9°F | 4.34 | 6 | 2 | <1 | 13 h 50 min |
| June | 87°F | 66°F | 76.7°F | 4.91 | 9 | 12 | <1 | 14 h 10 min |
| July | 89°F | 70°F | 79.7°F | 5.90 | 10 | 17 | <1 | 14 h |
| August | 89°F | 69°F | 78.9°F | 5.00 | 9 | 15 | <1 | 13 h 20 min |
| September | 85°F | 64°F | 74.6°F | 3.79 | 6 | 7 | <1 | 12 h 20 min |
| October | 77°F | 52°F | 64.2°F | 3.41 | 5 | <1 | 1 | 11 h 30 min |
| November | 67°F | 41°F | 53.8°F | 4.83 | 6 | <1 | 9 | 10 h 30 min |
| December | 60°F | 37°F | 48.4°F | 5.23 | 8 | <1 | 14 | 10 h |
| Year (annual) | 75°F | 52°F | 63.4°F | 57.19 | 88 | 54 | 61 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 14°C | 1°C | 7.9°C | 128 mm |
| February | 17°C | 3°C | 9.8°C | 120 mm |
| March | 21°C | 6°C | 13.4°C | 139 mm |
| April | 24°C | 9°C | 16.7°C | 116 mm |
| May | 28°C | 14°C | 21.1°C | 110 mm |
| June | 31°C | 19°C | 24.8°C | 125 mm |
| July | 32°C | 21°C | 26.5°C | 150 mm |
| August | 31°C | 21°C | 26.1°C | 127 mm |
| September | 30°C | 18°C | 23.7°C | 96 mm |
| October | 25°C | 11°C | 17.9°C | 87 mm |
| November | 20°C | 5°C | 12.1°C | 123 mm |
| December | 15°C | 3°C | 9.1°C | 133 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00018438; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Union Springs?
Normal highs sit between 65°F and 85°F in March, April, May, October and November. Of those, October has the fewest days with rain (5).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00018438.
When is the last frost in Union Springs?
In Union Springs, the last spring frost (32°F) comes after March 25 in half of years and after April 13 in one year in ten; the first autumn frost comes before November 6 in half of years and before October 24 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- March 251 year in 10 after April 13; 9 in 10 after February 28
- First autumn frost, half of years before
- November 61 year in 10 before October 24; 9 in 10 before November 25
NOAA puts the median frost-free season at 226 days, and the season without a hard freeze (28°F) at 255 days.
A hard freeze (28°F) comes after March 9 in half of springs and before November 17 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Union Springs in zone 8b in ZIP code 36089, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Union Springs's NOAA station is in zone 8b: the coldest night of a typical year reaches 15°F (26 complete years).
Frost dates for every NOAA station in Alabama · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00018438; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Union Springs?
In a normal year in Union Springs, 54 days a year reach 90°F, 61 nights fall to 32°F or colder and 88 days bring measurable precipitation.
- Days at 90°F or more
- 54a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 61a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 88a normal year
The highest temperature in this station's record (since 1892) is 107°F, on July 12, 1930; the lowest is −7°F, on February 12, 1899.
The wettest calendar year on that record is 2009, with 79.20 in; the snowiest season is 1972–73, with 13.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00018438; records: ACIS (NOAA Regional Climate Centers), station USC00018438. Records use complete months only; a month missing more than three days is left out.
How sunny is Union Springs?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Union Springs, 4.6 kWh per square metre a day. May is the sunniest month (82%) and February the cloudiest (70%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 74% | 2.8 |
| February | 70% | 3.4 |
| March | 74% | 4.5 |
| April | 79% | 5.7 |
| May | 82% | 6.3 |
| June | 80% | 6.2 |
| July | 81% | 6.1 |
| August | 80% | 5.5 |
| September | 80% | 4.9 |
| October | 80% | 4.1 |
| November | 79% | 3.2 |
| December | 71% | 2.5 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Union Springs need?
A normal year in Union Springs brings 2,470 heating degree days, 54% fewer than the median U.S. place (5,373), and 1,900 cooling degree days, 2.1 times the median (908). Four months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 5,478 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 584 | 3 |
| February | 434 | 5 |
| March | 296 | 20 |
| April | 141 | 52 |
| May | 30 | 182 |
| June | 0 | 351 |
| July | 0 | 456 |
| August | 0 | 431 |
| September | 5 | 293 |
| October | 110 | 87 |
| November | 350 | 15 |
| December | 521 | 5 |
| Year (annual) | 2,470 | 1,900 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00018438. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Union Springs been warmer than normal lately?
Over 72 complete years from 1888 to 2016, the station's annual mean temperature rose at a fitted -1.0°F per century (−0.06°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Union Springs's climate compare?
Union Springs is warmer than 40 of the other 79 places with their own NOAA record in Alabama, and wetter than 39. Across the 7,247 U.S. stations with normals, its annual mean of 63.4°F is warmer than 84%.
In the Köppen classification computed from these normals, Union Springs is Cfa: temperate, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Union Springs share this climate record?
2 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Midway, AL402 people · 14 mi E
- Fitzpatrick, AL0 people · 15 mi NW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Union Springs's climate
What is the coldest month in Union Springs?
January, with a normal high of 58°F and a normal low of 35°F. The warmest is July (89°F by day, 70°F at night).
Does it snow in Union Springs?
Rarely: NOAA's normal is 0.6 inch a year.
What is the rainiest month in Union Springs?
July, with 5.90 in of precipitation in a normal year; the driest is October with 3.41 in.
What plant hardiness zone is Union Springs in?
The USDA's 2023 map puts Union Springs in zone 8b in ZIP code 36089, the nearest ZIP area. By the same method at Union Springs's NOAA station, the coldest night of a typical year reaches 15°F (26 years, 1991-2020): zone 8b.
How late can frost come in Union Springs?
In half of years the last 32°F night comes after March 25; in one year in ten it comes after April 13. Waiting until April 13 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Alabama climateThe statewide normals and every place in the state
- Clayton, AL20 miles from this station, 65.3°F a year
- Troy, AL22 miles from this station, 64.5°F a year
- Milstead, AL30 miles from this station, 63.2°F a year
- Highland Home, AL31 miles from this station, 62.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made