Guntersville, Alabama climate: Normal weather by month, frost dates and records
Guntersville's normal year runs from 33°F January nights to 89°F July afternoons, with 56.7 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.4°C, January lows of 0°C, July highs of 31°C, 1,441 mm of precipitation a year.
- NOAA stationGuntersville No.2
- Station IDUSC00013575
- Location34.33°N 86.33°W
- Elevation595 ft (181 m)
- Population9,242
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Guntersville.
- Jan 50° 33°
- Feb 54° 35°
- Mar 63° 43°
- Apr 72° 50°
- May 79° 60°
- Jun 86° 68°
- Jul 89° 71°
- Aug 88° 71°
- Sep 83° 65°
- Oct 73° 54°
- Nov 62° 42°
- Dec 53° 36°
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 Guntersville each month?
July is the warmest month, with normal highs of 89°F; January the coldest, with normal lows of 33°F. The most precipitation falls in December (5.90 in), the least in October (3.28 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 50°F | 33°F | 41.0°F | 5.46 | 11 | <1 | 16 | 10 h 10 min |
| February | 54°F | 35°F | 44.8°F | 5.74 | 11 | <1 | 10 | 11 h |
| March | 63°F | 43°F | 52.8°F | 5.36 | 11 | <1 | 4 | 11 h 50 min |
| April | 72°F | 50°F | 61.0°F | 4.84 | 10 | <1 | <1 | 13 h |
| May | 79°F | 60°F | 69.4°F | 4.75 | 9 | 2 | <1 | 14 h |
| June | 86°F | 68°F | 76.7°F | 4.51 | 10 | 10 | <1 | 14 h 30 min |
| July | 89°F | 71°F | 79.9°F | 4.20 | 10 | 16 | <1 | 14 h 10 min |
| August | 88°F | 71°F | 79.1°F | 3.99 | 8 | 15 | <1 | 13 h 30 min |
| September | 83°F | 65°F | 73.9°F | 4.46 | 7 | 7 | <1 | 12 h 30 min |
| October | 73°F | 54°F | 63.4°F | 3.28 | 7 | <1 | <1 | 11 h 20 min |
| November | 62°F | 42°F | 52.0°F | 4.24 | 9 | <1 | 3 | 10 h 20 min |
| December | 53°F | 36°F | 44.3°F | 5.90 | 11 | <1 | 12 | 9 h 50 min |
| Year (annual) | 71°F | 52°F | 61.5°F | 56.73 | 113 | 49 | 44 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 10°C | 0°C | 5.0°C | 139 mm |
| February | 12°C | 2°C | 7.1°C | 146 mm |
| March | 17°C | 6°C | 11.6°C | 136 mm |
| April | 22°C | 10°C | 16.1°C | 123 mm |
| May | 26°C | 15°C | 20.8°C | 121 mm |
| June | 30°C | 20°C | 24.8°C | 115 mm |
| July | 31°C | 22°C | 26.6°C | 107 mm |
| August | 31°C | 21°C | 26.2°C | 101 mm |
| September | 28°C | 18°C | 23.3°C | 113 mm |
| October | 23°C | 12°C | 17.4°C | 83 mm |
| November | 16°C | 6°C | 11.1°C | 108 mm |
| December | 12°C | 2°C | 6.8°C | 150 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. Guntersville's own co-op station Guntersville station does: 1 inches of snow in a normal year (see the other stations below).
Source: NOAA NCEI 1991-2020 monthly normals, station USC00013575; 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 Guntersville?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, September has the fewest days with rain (7).
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 USC00013575.
When is the last frost in Guntersville?
In Guntersville, the last spring frost (32°F) comes after March 17 in half of years and after April 5 in one year in ten; the first autumn frost comes before November 19 in half of years and before November 4 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 171 year in 10 after April 5; 9 in 10 after February 26
- First autumn frost, half of years before
- November 191 year in 10 before November 4; 9 in 10 before December 6
NOAA puts the median frost-free season at 247 days, and the season without a hard freeze (28°F) at 273 days.
A hard freeze (28°F) comes after March 2 in half of springs and before December 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Guntersville in zone 8a in ZIP code 35976.
Frost dates for every NOAA station in Alabama · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00013575; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Guntersville?
In a normal year in Guntersville, 49 days a year reach 90°F (2 of them 100°F or more), 44 nights fall to 32°F or colder and 113 days bring measurable precipitation.
- Days at 90°F or more
- 49a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 44a normal year
- Days that stay below freezing
- 3high of 32°F or less
- Days with 0.01 inch of precipitation
- 113a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00013575.
How sunny is Guntersville?
Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Guntersville, 4.4 kWh per square metre a day. August is the sunniest month (81%) and February the cloudiest (64%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 69% | 2.5 |
| February | 64% | 3.0 |
| March | 70% | 4.2 |
| April | 77% | 5.5 |
| May | 77% | 6.0 |
| June | 80% | 6.3 |
| July | 80% | 6.1 |
| August | 81% | 5.6 |
| September | 80% | 4.9 |
| October | 78% | 3.9 |
| November | 76% | 2.9 |
| December | 67% | 2.2 |
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 Guntersville need?
A normal year in Guntersville brings 3,063 heating degree days, 43% fewer than the median U.S. place (5,373), and 1,829 cooling degree days, 2.0 times the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 5,138 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 744 | 0 |
| February | 566 | 1 |
| March | 386 | 8 |
| April | 163 | 44 |
| May | 35 | 171 |
| June | 1 | 352 |
| July | 0 | 460 |
| August | 0 | 439 |
| September | 7 | 276 |
| October | 122 | 71 |
| November | 396 | 6 |
| December | 643 | 1 |
| Year (annual) | 3,063 | 1,829 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00013575. 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 Guntersville been warmer than normal lately?
2023 averaged 63.3°F, 1.8°F above the 1991-2020 normal of 61.5°F. 3 of the 3 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 62.1°F | +0.6°F | 67.28 |
| 2022 | 62.1°F | +0.6°F | 65.72 |
| 2023 | 63.3°F | +1.8°F | 46.49 |
Source: observed years: ACIS, station USC00013575. A year counts only with all twelve months complete.
How does Guntersville's climate compare?
Guntersville is warmer than 20 of the other 79 places with their own NOAA record in Alabama, and wetter than 31. Across the 7,247 U.S. stations with normals, its annual mean of 61.5°F is warmer than 78%.
In the Köppen classification computed from these normals, Guntersville 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 Guntersville share this climate record?
7 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.
- Albertville, AL23,392 people · 8 mi SE
- Boaz, AL10,473 people · 14 mi SE
- Arab, AL8,918 people · 10 mi W
- New Union, AL927 people · 15 mi SE
- Douglas, AL788 people · 11 mi S
- Joppa, AL419 people · 13 mi W
- Union Grove, AL76 people · 9 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.
What do Guntersville's other NOAA stations record?
One more NOAA station keeps 1991-2020 normals in or near Guntersville. This page uses Guntersville No.2; the other differs by site and elevation:
| Station | From this station | Elevation | Year | Jan low | Jul high | Precip. | Snow | Last frost |
|---|---|---|---|---|---|---|---|---|
| Guntersville station USC00013573 | in town | 578 ft | 61.9°F | 33°F | 89°F | 56.8 | 1 | March 19 |
Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.
Questions about Guntersville's climate
What is the coldest month in Guntersville?
January, with a normal high of 50°F and a normal low of 33°F. The warmest is July (89°F by day, 71°F at night).
Does it snow in Guntersville?
Rarely. NOAA publishes no 1991-2020 snowfall normal for Guntersville's NOAA station; Guntersville's own co-op station Guntersville station records 1 inches of snow in a normal year.
What is the rainiest month in Guntersville?
December, with 5.90 in of precipitation in a normal year; the driest is October with 3.28 in.
What plant hardiness zone is Guntersville in?
The USDA's 2023 map puts Guntersville in zone 8a in ZIP code 35976.
How late can frost come in Guntersville?
In half of years the last 32°F night comes after March 17; in one year in ten it comes after April 5. Waiting until April 5 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Alabama climateThe statewide normals and every place in the state
- Owens Cross Roads, AL16 miles from this station, 59.5°F a year
- Cullman, AL29 miles from this station, 59.9°F a year
- Cullman Nahs, AL29 miles from this station, 59.1°F a year
- Oneonta, AL29 miles from this station, 62.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made