Philadelphia, Mississippi climate: Normal weather by month, frost dates and records
Philadelphia's normal year runs from 35°F January nights to 91°F July afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 17.9°C, January lows of 2°C, July highs of 33°C.
- NOAA stationPhiladelphia (1 mi WSW)
- Station IDUSC00226894
- Location32.77°N 89.13°W
- Elevation413 ft (126 m)
- From the centerunder 1 mile
- Population6,938
On October 23, the normal high in Philadelphia is 75°F and the normal low 50°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Philadelphia.
- Jan 56° 35°
- Feb 61° 38°
- Mar 68° 45°
- Apr 76° 52°
- May 83° 61°
- Jun 89° 68°
- Jul 91° 71°
- Aug 91° 70°
- Sep 87° 64°
- Oct 78° 53°
- Nov 67° 43°
- Dec 59° 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 Philadelphia each month?
July is the warmest month, with normal highs of 91°F; January the coldest, with normal lows of 35°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 56°F | 35°F | 45.5°F | – | <1 | 14 | 10 h 10 min |
| February | 61°F | 38°F | 49.3°F | – | <1 | 10 | 11 h |
| March | 68°F | 45°F | 56.6°F | – | <1 | 4 | 12 h |
| April | 76°F | 52°F | 63.7°F | – | <1 | <1 | 13 h |
| May | 83°F | 61°F | 71.7°F | – | 4 | <1 | 13 h 50 min |
| June | 89°F | 68°F | 78.5°F | – | 18 | <1 | 14 h 20 min |
| July | 91°F | 71°F | 81.1°F | – | 23 | <1 | 14 h 10 min |
| August | 91°F | 70°F | 80.7°F | – | 23 | <1 | 13 h 20 min |
| September | 87°F | 64°F | 75.6°F | – | 13 | <1 | 12 h 30 min |
| October | 78°F | 53°F | 65.1°F | – | 2 | 1 | 11 h 30 min |
| November | 67°F | 43°F | 54.7°F | – | <1 | 6 | 10 h 30 min |
| December | 59°F | 37°F | 47.9°F | – | <1 | 13 | 10 h |
| Year (annual) | 75°F | 53°F | 64.2°F | – | 81 | 49 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 13°C | 2°C | 7.5°C |
| February | 16°C | 3°C | 9.6°C |
| March | 20°C | 7°C | 13.7°C |
| April | 24°C | 11°C | 17.6°C |
| May | 28°C | 16°C | 22.1°C |
| June | 32°C | 20°C | 25.8°C |
| July | 33°C | 22°C | 27.3°C |
| August | 33°C | 21°C | 27.1°C |
| September | 30°C | 18°C | 24.2°C |
| October | 25°C | 11°C | 18.4°C |
| November | 19°C | 6°C | 12.6°C |
| December | 15°C | 3°C | 8.8°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Carthage (24 miles away), gets 0 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00226894; 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 Philadelphia?
Normal highs sit between 65°F and 85°F in March, April, May, October and November.
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 USC00226894.
When is the last frost in Philadelphia?
In Philadelphia, the last spring frost (32°F) comes after March 20 in half of years and after April 9 in one year in ten; the first autumn frost comes before November 9 in half of years and before October 26 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 201 year in 10 after April 9; 9 in 10 after February 28
- First autumn frost, half of years before
- November 91 year in 10 before October 26; 9 in 10 before November 28
NOAA puts the median frost-free season at 235 days, and the season without a hard freeze (28°F) at 263 days.
A hard freeze (28°F) comes after March 4 in half of springs and before November 21 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Philadelphia in zone 8b in ZIP code 39350, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Philadelphia's NOAA station is in zone 8b: the coldest night of a typical year reaches 16°F (20 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 USC00226894; 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 Philadelphia?
In a normal year in Philadelphia, 81 days a year reach 90°F (2 of them 100°F or more) and 49 nights fall to 32°F or colder.
- Days at 90°F or more
- 81a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 49a normal year
- Days that stay below freezing
- 1high of 32°F or less
The highest temperature in this station's record (since 1949) is 106°F, on August 30, 2000; the lowest is −3°F, on January 12, 1962.
The wettest calendar year on that record is 2020, with 80.20 in; the snowiest season is 1976–77, with 7.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00226894; records: ACIS (NOAA Regional Climate Centers), station USC00226894. Records use complete months only; a month missing more than three days is left out.
How sunny is Philadelphia?
Over a year 77% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Philadelphia, 4.6 kWh per square metre a day. June is the sunniest month (82%) and February the cloudiest (67%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 2.7 |
| February | 67% | 3.3 |
| March | 72% | 4.4 |
| April | 77% | 5.5 |
| May | 79% | 6.1 |
| June | 82% | 6.4 |
| July | 80% | 6.1 |
| August | 81% | 5.7 |
| September | 82% | 5.1 |
| October | 80% | 4.1 |
| November | 78% | 3.2 |
| December | 69% | 2.4 |
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 Philadelphia need?
A normal year in Philadelphia brings 2,444 heating degree days, 55% fewer than the median U.S. place (5,373), and 2,174 cooling degree days, 2.4 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 5,807 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 606 | 3 |
| February | 445 | 6 |
| March | 287 | 25 |
| April | 116 | 77 |
| May | 20 | 226 |
| June | 0 | 404 |
| July | 0 | 498 |
| August | 0 | 485 |
| September | 5 | 323 |
| October | 102 | 105 |
| November | 327 | 16 |
| December | 537 | 7 |
| Year (annual) | 2,444 | 2,174 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00226894. 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 Philadelphia been warmer than normal lately?
2022 averaged 64.2°F, equal to the 1991-2020 normal of 64.2°F. 0 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal |
|---|---|---|
| 2021 | 63.9°F | −0.3°F |
| 2022 | 64.2°F | at normal |
Over 49 complete years from 1953 to 2022, the station's annual mean temperature rose at a fitted 1.9°F per century (+0.10°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00226894; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Philadelphia's climate compare?
Philadelphia is warmer than 42 of the other 80 places with their own NOAA record in Mississippi. Across the 7,247 U.S. stations with normals, its annual mean of 64.2°F is warmer than 86%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Which places near Philadelphia share this climate record?
4 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.
- Pearl River, MS4,403 people · 7 mi W
- Union, MS2,003 people · 14 mi S
- Tucker, MS497 people · 6 mi SE
- Bogue Chitto, MS441 people · 13 mi E
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 Philadelphia's climate
What is the coldest month in Philadelphia?
January, with a normal high of 56°F and a normal low of 35°F. The warmest is July (91°F by day, 71°F at night).
Does it snow in Philadelphia?
Rarely. NOAA publishes no 1991-2020 snowfall normal for Philadelphia's NOAA station; the nearest record that keeps one, Carthage (24 miles away), records 0 inches of snow in a normal year.
What plant hardiness zone is Philadelphia in?
The USDA's 2023 map puts Philadelphia in zone 8b in ZIP code 39350, the nearest ZIP area. By the same method at Philadelphia's NOAA station, the coldest night of a typical year reaches 16°F (20 years, 1991-2020): zone 8b.
How late can frost come in Philadelphia?
In half of years the last 32°F night comes after March 20; in one year in ten it comes after April 9. Waiting until April 9 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Mississippi climateThe statewide normals and every place in the state
- Carthage, MS24 miles from this station, 63.8°F a year
- Louisville, MS25 miles from this station, 63.5°F a year
- Newton, MS30 miles from this station, 63.2°F a year
- Kosciusko, MS33 miles from this station, 62.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made