Mayport Pilot Station, Florida climate: Climate normals at a NOAA weather station
Mayport Pilot Station's normal year runs from 47°F January nights to 90°F July afternoons, with 48.5 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 21.1°C, January lows of 8°C, July highs of 32°C, 1,233 mm of precipitation a year.
- NOAA stationMayport Pilot Station
- Station IDUSW00003853
- Location30.40°N 81.42°W
- Elevation16 ft (5 m)
On October 23, the normal high in Mayport Pilot Station is 78°F and the normal low 64°F, and the chance of measurable rain or snow is 27%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Mayport Pilot Station.
- Jan 64° 47°
- Feb 67° 49°
- Mar 71° 54°
- Apr 77° 60°
- May 83° 68°
- Jun 88° 73°
- Jul 90° 75°
- Aug 89° 75°
- Sep 86° 73°
- Oct 80° 66°
- Nov 72° 57°
- Dec 66° 50°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Mayport Pilot Station each month?
July is the warmest month, with normal highs of 90°F; January the coldest, with normal lows of 47°F. The most precipitation falls in June (6.61 in), the least in November (2.28 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 64°F | 47°F | 55.2°F | 2.93 | 9 | <1 | 2 | 10 h 20 min |
| February | 67°F | 49°F | 58.0°F | 2.58 | 9 | <1 | 1 | 11 h 10 min |
| March | 71°F | 54°F | 62.8°F | 3.06 | 9 | <1 | <1 | 12 h |
| April | 77°F | 60°F | 68.7°F | 2.48 | 7 | 1 | <1 | 12 h 50 min |
| May | 83°F | 68°F | 75.4°F | 3.03 | 7 | 5 | <1 | 13 h 40 min |
| June | 88°F | 73°F | 80.4°F | 6.61 | 13 | 12 | <1 | 14 h 10 min |
| July | 90°F | 75°F | 82.5°F | 5.43 | 13 | 20 | <1 | 14 h |
| August | 89°F | 75°F | 82.2°F | 5.96 | 15 | 15 | <1 | 13 h 20 min |
| September | 86°F | 73°F | 79.6°F | 6.44 | 12 | 6 | <1 | 12 h 20 min |
| October | 80°F | 66°F | 73.1°F | 4.98 | 10 | 1 | <1 | 11 h 30 min |
| November | 72°F | 57°F | 64.5°F | 2.28 | 9 | <1 | <1 | 10 h 40 min |
| December | 66°F | 50°F | 58.1°F | 2.76 | 9 | <1 | 1 | 10 h 10 min |
| Year (annual) | 78°F | 62°F | 70.0°F | 48.54 | 121 | 57 | 3 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 18°C | 8°C | 12.9°C | 74 mm |
| February | 19°C | 10°C | 14.4°C | 66 mm |
| March | 22°C | 12°C | 17.1°C | 78 mm |
| April | 25°C | 16°C | 20.4°C | 63 mm |
| May | 29°C | 20°C | 24.1°C | 77 mm |
| June | 31°C | 23°C | 26.9°C | 168 mm |
| July | 32°C | 24°C | 28.1°C | 138 mm |
| August | 32°C | 24°C | 27.9°C | 151 mm |
| September | 30°C | 23°C | 26.4°C | 164 mm |
| October | 27°C | 19°C | 22.8°C | 126 mm |
| November | 22°C | 14°C | 18.1°C | 58 mm |
| December | 19°C | 10°C | 14.5°C | 70 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00003853; 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.
Which months are mildest at Mayport Pilot Station?
Normal highs sit between 65°F and 85°F in February, March, April, May, October, November and December. Of those, April 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 USW00003853.
When is the last frost at Mayport Pilot Station?
In Mayport Pilot Station, the last spring frost (32°F) comes after February 1 in half of years and after March 1 in one year in ten; the first autumn frost comes before January 5 in half of years and before December 10 in one year in ten. A night at 32°F or colder comes at all in 84% of years here (NOAA).
- Last spring frost, half of years after
- February 11 year in 10 after March 1; 9 in 10 after January 1
- First autumn frost, half of years before
- January 51 year in 10 before December 10; 9 in 10 before February 7
NOAA puts the median frost-free season at 332 days, and the season without a hard freeze (28°F) at 365 days.
A hard freeze (28°F) comes after January 22 in half of springs and before January 13 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Mayport Pilot Station in zone 9b in ZIP code 32227, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 9b: the coldest night of a typical year reaches 29°F (17 complete years).
Frost dates for every NOAA station in Florida · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00003853; 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 at Mayport Pilot Station?
In a normal year in Mayport Pilot Station, 57 days a year reach 90°F, 3 nights fall to 32°F or colder and 121 days bring measurable precipitation.
- Days at 90°F or more
- 57a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 3a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 121a normal year
The highest temperature in this station's record (since 1959) is 103°F, on June 20, 1990; the lowest is 8°F, on January 21, 1985.
The wettest calendar year on that record is 1991, with 75.93 in; the snowiest season is 1989–90, with 2.9 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00003853; records: ACIS (NOAA Regional Climate Centers), station USW00003853. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Mayport Pilot Station?
Over a year 80% of the sunlight that would reach the ground under clear skies gets through the clouds at Mayport Pilot Station, 4.8 kWh per square metre a day. May is the sunniest month (84%) and February the cloudiest (75%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 77% | 3.1 |
| February | 75% | 3.7 |
| March | 80% | 5.0 |
| April | 83% | 6.0 |
| May | 84% | 6.5 |
| June | 79% | 6.1 |
| July | 81% | 6.1 |
| August | 80% | 5.7 |
| September | 78% | 4.9 |
| October | 80% | 4.2 |
| November | 80% | 3.4 |
| December | 75% | 2.8 |
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 many heating and cooling degree days does Mayport Pilot Station record?
A normal year at Mayport Pilot Station brings 1,043 heating degree days, 81% fewer than the median U.S. place (5,373), and 2,910 cooling degree days, 3.2 times the median (908). One month needs 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 7,434 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 318 | 14 |
| February | 218 | 20 |
| March | 127 | 59 |
| April | 29 | 142 |
| May | 2 | 324 |
| June | 0 | 462 |
| July | 0 | 544 |
| August | 0 | 533 |
| September | 0 | 440 |
| October | 13 | 264 |
| November | 100 | 84 |
| December | 238 | 26 |
| Year (annual) | 1,043 | 2,910 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00003853. 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.
How does Mayport Pilot Station's climate compare?
Mayport Pilot Station is warmer than 32 of the 106 places with their own NOAA record in Florida, and wetter than 9. Across the 7,247 U.S. stations with normals, its annual mean of 70.0°F is warmer than 95%.
In the Köppen classification computed from these normals, Mayport Pilot Station 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.
Questions about Mayport Pilot Station's climate
What is the coldest month at Mayport Pilot Station?
January, with a normal high of 64°F and a normal low of 47°F. The warmest is July (90°F by day, 75°F at night).
What is the rainiest month at Mayport Pilot Station?
June, with 6.61 in of precipitation in a normal year; the driest is November with 2.28 in.
What plant hardiness zone is Mayport Pilot Station in?
The USDA's 2023 map puts Mayport Pilot Station in zone 9b in ZIP code 32227, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 29°F (17 years, 1991-2020): zone 9b.
How late can frost come at Mayport Pilot Station?
In half of years the last 32°F night comes after February 1; in one year in ten it comes after March 1. Waiting until March 1 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Florida climateThe statewide normals and every place in the state
- Jacksonville Craig Municipal Airport, FL7 miles from this station, 69.5°F a year
- Jacksonville Beach, FL8 miles from this station, 71.4°F a year
- Jacksonville, FL18 miles from this station, 69.3°F a year
- Fernandina Beach, FL19 miles from this station, 70.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made