Hernando, Mississippi climate: Normal weather by month, frost dates and records
Hernando's normal year runs from 30°F January nights to 90°F July afternoons, with 56.5 inches of precipitation and 2 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 16.2°C, January lows of −1°C, July highs of 32°C, 1,436 mm of precipitation a year.
- NOAA stationHernando
- Station IDUSC00223975
- Location34.80°N 90.01°W
- Elevation380 ft (116 m)
- Population18,542
On October 22, the normal high in Hernando is 72°F and the normal low 48°F, and the chance of measurable rain or snow is 26%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Hernando.
- Jan 50° 30°
- Feb 54° 34°
- Mar 63° 41°
- Apr 72° 50°
- May 80° 60°
- Jun 88° 67°
- Jul 90° 71°
- Aug 90° 69°
- Sep 85° 62°
- Oct 74° 50°
- Nov 62° 40°
- Dec 52° 34°
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 Hernando each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 30°F. The most precipitation falls in April (6.25 in), the least in August (3.40 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 50°F | 30°F | 40.0°F | 4.22 | 0.9 | 10 | <1 | 18 | 10 h |
| February | 54°F | 34°F | 43.7°F | 5.04 | 0.7 | 10 | <1 | 13 | 10 h 50 min |
| March | 63°F | 41°F | 52.0°F | 5.52 | 0.1 | 11 | <1 | 6 | 11 h 50 min |
| April | 72°F | 50°F | 61.2°F | 6.25 | 0.0 | 9 | 1 | 1 | 13 h |
| May | 80°F | 60°F | 69.9°F | 5.49 | 0.0 | 11 | 4 | <1 | 14 h |
| June | 88°F | 67°F | 77.4°F | 4.80 | 0.0 | 10 | 13 | <1 | 14 h 30 min |
| July | 90°F | 71°F | 80.4°F | 4.14 | 0.0 | 9 | 21 | <1 | 14 h 20 min |
| August | 90°F | 69°F | 79.8°F | 3.40 | 0.0 | 7 | 18 | <1 | 13 h 30 min |
| September | 85°F | 62°F | 73.7°F | 3.48 | 0.0 | 6 | 10 | <1 | 12 h 30 min |
| October | 74°F | 50°F | 62.2°F | 4.11 | 0.0 | 7 | 2 | 1 | 11 h 20 min |
| November | 62°F | 40°F | 50.7°F | 4.25 | 0.1 | 9 | <1 | 8 | 10 h 20 min |
| December | 52°F | 34°F | 42.9°F | 5.83 | 0.1 | 10 | <1 | 15 | 9 h 50 min |
| Year (annual) | 72°F | 51°F | 61.2°F | 56.53 | 1.9 | 110 | 69 | 61 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 10°C | −1°C | 4.4°C | 107 mm | 2 cm |
| February | 12°C | 1°C | 6.5°C | 128 mm | 2 cm |
| March | 17°C | 5°C | 11.1°C | 140 mm | 0 cm |
| April | 22°C | 10°C | 16.2°C | 159 mm | 0 cm |
| May | 27°C | 15°C | 21.1°C | 139 mm | 0 cm |
| June | 31°C | 20°C | 25.2°C | 122 mm | 0 cm |
| July | 32°C | 22°C | 26.9°C | 105 mm | 0 cm |
| August | 32°C | 21°C | 26.6°C | 86 mm | 0 cm |
| September | 30°C | 17°C | 23.2°C | 88 mm | 0 cm |
| October | 23°C | 10°C | 16.8°C | 104 mm | 0 cm |
| November | 16°C | 4°C | 10.4°C | 108 mm | 0 cm |
| December | 11°C | 1°C | 6.1°C | 148 mm | 0 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00223975; 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 Hernando?
Normal highs sit between 65°F and 85°F in April, May and October. Of those, October 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 USC00223975.
When is the last frost in Hernando?
In Hernando, the last spring frost (32°F) comes after March 28 in half of years and after April 12 in one year in ten; the first autumn frost comes before November 5 in half of years and before October 25 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 281 year in 10 after April 12; 9 in 10 after March 6
- First autumn frost, half of years before
- November 51 year in 10 before October 25; 9 in 10 before November 20
NOAA puts the median frost-free season at 223 days, and the season without a hard freeze (28°F) at 246 days.
A hard freeze (28°F) comes after March 13 in half of springs and before November 16 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Hernando in zone 8a across its 2 ZIP code areas (8a in 38632, the largest). By the map's own method, the average of each year's coldest night over 1991-2020, Hernando's NOAA station is in zone 8a: the coldest night of a typical year reaches 12°F (17 complete years).
Frost dates for every NOAA station in Mississippi · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00223975; 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.
What hardiness zone is each Hernando ZIP code in?
The USDA's 2023 map gives each ZIP code area one zone. Hernando's 2 ZIP code areas are all in zone 8a. Each ZIP's frost dates are in the frost tool.
Source: USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; ZIP areas in the place: Census Bureau 2020 ZCTA-to-place relationship file. A ZIP area counts when at least a tenth of its land (and 0.5 km²) lies in the place.
How hot and how cold does it get in Hernando?
In a normal year in Hernando, 69 days a year reach 90°F (6 of them 100°F or more), 61 nights fall to 32°F or colder and 110 days bring measurable precipitation.
- Days at 90°F or more
- 69a normal year
- Days at 100°F or more
- 6a normal year
- Nights at 32°F or colder
- 61a normal year
- Days that stay below freezing
- 4high of 32°F or less
- Days with 0.01 inch of precipitation
- 110a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1893) is 112°F, on August 14, 2007; the lowest is −12°F, on January 12, 1918.
The wettest calendar year on that record is 1979, with 71.12 in; the snowiest season is 1946–47, with 23.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00223975; records: ACIS (NOAA Regional Climate Centers), station USC00223975. Records use complete months only; a month missing more than three days is left out.
How sunny is Hernando?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Hernando, 4.5 kWh per square metre a day. August is the sunniest month (84%) and February the cloudiest (66%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 69% | 2.5 |
| February | 66% | 3.0 |
| March | 71% | 4.2 |
| April | 76% | 5.4 |
| May | 78% | 6.0 |
| June | 84% | 6.6 |
| July | 84% | 6.4 |
| August | 84% | 5.8 |
| September | 83% | 5.0 |
| October | 79% | 3.9 |
| November | 76% | 2.9 |
| December | 68% | 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 Hernando need?
A normal year in Hernando brings 3,288 heating degree days, 39% fewer than the median U.S. place (5,373), and 1,922 cooling degree days, 2.1 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 5,175 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 777 | 1 |
| February | 597 | 1 |
| March | 415 | 12 |
| April | 167 | 55 |
| May | 34 | 187 |
| June | 1 | 371 |
| July | 0 | 478 |
| August | 0 | 459 |
| September | 14 | 276 |
| October | 161 | 74 |
| November | 436 | 7 |
| December | 686 | 1 |
| Year (annual) | 3,288 | 1,922 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00223975. 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 Hernando been warmer than normal lately?
2025 averaged 62.5°F, 1.3°F above the 1991-2020 normal of 61.2°F. 4 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 61.5°F | +0.3°F | 56.08 | – |
| 2023 | 62.7°F | +1.5°F | – | 0.0 |
| 2024 | 63.0°F | +1.8°F | 64.24 | 2.9 |
| 2025 | 62.5°F | +1.3°F | – | 5.4 |
Over 65 complete years from 1900 to 2025, the station's annual mean temperature rose at a fitted 0.4°F per century (+0.02°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00223975; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Hernando's climate compare?
Hernando is warmer than 10 of the other 80 places with their own NOAA record in Mississippi, and wetter than 11. Across the 7,247 U.S. stations with normals, its annual mean of 61.2°F is warmer than 78%.
In the Köppen classification computed from these normals, Hernando 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 Hernando 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.
- Eudora, MS605 people · 8 mi W
- Arkabutla, MS202 people · 10 mi SW
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 Hernando's climate
What is the coldest month in Hernando?
January, with a normal high of 50°F and a normal low of 30°F. The warmest is July (90°F by day, 71°F at night).
Does it snow in Hernando?
Yes: 2 inches in a normal year, falling on 1 days with 0.1 inch or more, the most in January (0.9 inches).
What is the rainiest month in Hernando?
April, with 6.25 in of precipitation in a normal year; the driest is August with 3.40 in.
What plant hardiness zone is Hernando in?
The USDA's 2023 map puts Hernando in zone 8a across its 2 ZIP code areas (8a in 38632, the largest). By the same method at Hernando's NOAA station, the coldest night of a typical year reaches 12°F (17 years, 1991-2020): zone 8a.
How late can frost come in Hernando?
In half of years the last 32°F night comes after March 28; in one year in ten it comes after April 12. Waiting until April 12 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Mississippi climateThe statewide normals and every place in the state
- Senatobia, MS12 miles from this station, 61.9°F a year
- Independence, MS13 miles from this station, 60.0°F a year
- Olive Branch, MS14 miles from this station, 61.8°F a year
- Memphis, TN17 miles from this station, 63.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made