Allentown sits near the top of U.S. towns for precipitation, with 63 inches a year
Sunny July days climb to about 91°. By January nights alone, it runs milder than 89% of U.S. towns. Decade by decade the climate has edged up, 0.4° above 1901–2000. The outdoor season runs from February to April and October to December, with highs of 64–80°.
A year in Allentown at a glance
Each month’s typical high and low, and what it brings.
What stands out about Allentown’s climate
Compared with towns across the U.S., with Allentown’s place in Florida beside it.
What a year in Allentown feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 241 frost-free days a year
In half of years the last 32° night comes by March 15 and the first by November 13. Frost and day counts come from NOAA’s station at Milton Exp Stn, FL, 3 miles from the town’s center, at about the same height.
The 2023 USDA map puts Allentown’s center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 21°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 63 inches of rain a year
July is the wettest month and May the driest. Rain falls on about 108 days a year. Snow is rare: about 0.1" in a normal year at Milton Exp Stn, FL, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Allentown
49% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55° run from December through February.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Milton Exp Stn, FL.
Living with Allentown’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
241 frost-free days in zone 9a. The last frost comes by Mar 15 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 13.
Months with highs of 62–84° and lows of 40° or more: February, March, April, October, November and December. 2.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Allentown from natural hazards, hurricanes are the largest share (57%); heat waves, cold waves, winter storms and ice storms together are 5%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Allentown and similar climates
TownRatings has no climate map of the towns around Allentown yet.
Climates most like Allentown’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Allentown, FL | 40° | 91° | 63" | 0.1" |
| Baton Rouge, LA | 41° | 92° | 63" | 0.2" |
| McComb, MS | 38° | 92° | 62" | 0.2" |
| Magalia, CA | 38° | 92° | 61" | 0.1" |
| Vidor, TX | 42° | 92° | 61" | 0.1" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Allentown averaged 0.4° warmer than the 1900s. The biggest change is in December (+1.0°).
A smaller shift than in all but 99 U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Allentown compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Allentown’s place among Florida’s.
Allentown weather by month
Highs, lows and precipitation from NOAA’s grid at Allentown’s center; snow, wet days and snow on the ground from Milton Exp Stn, FL. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 62° | 40° | 5.3" | 0.0" | 10 | 0 | 43° – 58° |
| February | 66° | 43° | 4.6" | 0.0" | 8 | 0 | 45° – 63° |
| March | 72° | 49° | 5.0" | 0.1" | 8 | 0 | 55° – 68° |
| April | 78° | 54° | 5.1" | 0.0" | 6 | 0 | 62° – 71° |
| May | 85° | 62° | 3.8" | 0.0" | 7 | 0 | 71° – 77° |
| June | 90° | 69° | 6.3" | 0.0" | 11 | 0 | 76° – 83° |
| July | 91° | 72° | 6.6" | 0.0" | 15 | 0 | 79° – 84° |
| August | 91° | 71° | 6.5" | 0.0" | 13 | 0 | 78° – 84° |
| September | 88° | 67° | 5.8" | 0.0" | 8 | 0 | 75° – 82° |
| October | 80° | 57° | 4.1" | 0.0" | 7 | 0 | 64° – 73° |
| November | 71° | 46° | 4.3" | 0.0" | 7 | 0 | 52° – 64° |
| December | 64° | 42° | 5.1" | 0.0" | 8 | 0 | 47° – 62° |
| Year | 78° | 56° | 62.5" | 0.1" | 108 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 45° to 63°. July is the most reliable, staying within 5°.
Where Allentown’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Allentown’s center.
- Snow: Milton Exp Stn, FL.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Milton Exp Stn, FL, 3 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Allentown’s climate
What is the weather like in Allentown?
A typical July afternoon reaches 91°, a January night drops to 40°, and snow is almost unheard of. Milder January nights than 89% of U.S. towns; hotter July afternoons than 84% of U.S. towns.
How cold does it get in Allentown in winter?
January nights average 40°. About 31 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 43°.
How much snow does Allentown get?
About 0.1 inches in a normal winter at Milton Exp Stn, FL, so most winters see none.
How hot does it get in Allentown?
July, with a typical high of 91° and a low of 72°. About 94 days a year reach 90° and 2 reach 100° (Milton Exp Stn, FL).
When is the first and last frost in Allentown?
In half of years the last spring frost (32°) comes by March 15 and the first fall frost by November 13, about 241 frost-free days, at Milton Exp Stn, FL.
What growing zone is Allentown in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 21°.
What is the best time of year to visit Allentown?
By one simple rule (highs of 62–84° and lows of 40° or more), February, March, April, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Allentown getting warmer?
Yes: 1991–2020 averaged 0.4° warmer than 1901–2000 on NOAA’s grid. A smaller shift than all but 99 U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Allentown.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.