Ramona Theatre · Photo: Crimsonedge34 · CC BY-SA 3.0Frederick reaches 100° on about 37 days a year, more than 98% of U.S. towns
January mornings start at about 29°. Its yearly precipitation falls short of 86% of U.S. towns. Warming shows here too: 0.9° more than in 1901–2000, led by January. Homes need heating from December to February, the months averaging under 50°.
A year in Frederick at a glance
Each month’s typical high and low, and what it brings.
What stands out about Frederick’s climate
Compared with towns across the U.S., with Frederick’s place in Oklahoma beside it.
What a year in Frederick feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 229 frost-free days a year
In half of years the last 32° night comes by March 26 and the first by November 10. Frost and day counts come from NOAA’s station at Altus Afb, OK, 1.1 miles from the town’s center, at about the same height.
The 2023 USDA map puts Frederick’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 12°. 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 1 inches of snow a winter
Snow, measured at Vernon, TX, falls mostly in January. Precipitation (rain plus melted snow) adds up to 28 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 57 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Frederick
54% of the work is heating. Months averaging under 55° run from November through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Altus Afb, OK.
Living with Frederick’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
229 frost-free days in zone 8a. The last frost comes by Mar 26 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 10.
Months with highs of 62–84° and lows of 40° or more: March, April, May and October.
Parks & trails →Of the yearly building losses FEMA expects in Frederick from natural hazards, tornadoes are the largest share (23%); heat waves, cold waves, winter storms and ice storms together are 19%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Frederick and similar climates
TownRatings has no climate map of the towns around Frederick yet.
Climates most like Frederick’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 |
|---|---|---|---|---|
| Frederick, OK | 29° | 97° | 28" | 1.2" |
| Brownwood, TX | 33° | 96° | 29" | 1.3" |
| Oakhurst, CA | 34° | 95° | 29" | 2.5" |
| Sedona, AZ | 30° | 97° | 17" | 1.0" |
| Central Point, OR | 32° | 93° | 22" | 3.4" |
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 Frederick averaged 0.9° warmer than the 1900s. The biggest change is in January (+2.0°).
A smaller shift than in 82% of 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 Frederick compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Frederick’s place among Oklahoma’s.
Frederick weather by month
Highs, lows and precipitation from NOAA’s grid at Frederick’s center; snow, wet days and snow on the ground from Vernon, TX. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 54° | 29° | 1.0" | 0.9" | 4 | 0 | 37° – 50° |
| February | 58° | 33° | 1.2" | 0.3" | 4 | 0 | 39° – 53° |
| March | 67° | 41° | 2.2" | 0.0" | 5 | 0 | 49° – 60° |
| April | 75° | 49° | 2.5" | 0.0" | 5 | 0 | 56° – 69° |
| May | 84° | 59° | 4.2" | 0.0" | 6 | 0 | 67° – 78° |
| June | 93° | 68° | 3.6" | 0.0" | 7 | 0 | 76° – 89° |
| July | 97° | 72° | 2.2" | 0.0" | 4 | 0 | 80° – 92° |
| August | 96° | 71° | 2.4" | 0.0" | 5 | 0 | 78° – 93° |
| September | 88° | 64° | 2.9" | 0.0" | 5 | 0 | 71° – 83° |
| October | 77° | 52° | 2.7" | 0.0" | 5 | 0 | 57° – 69° |
| November | 64° | 40° | 1.8" | 0.0" | 4 | 0 | 46° – 57° |
| December | 54° | 31° | 1.4" | 0.0" | 4 | 0 | 35° – 47° |
| Year | 75° | 51° | 28.0" | 1.2" | 57 | 1 |
How much a month can swing
A normal is an average. August swings the most: from 1991 to 2020 its average ranged from 78° to 93°. May is the most reliable, staying within 11°.
Where Frederick’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 Frederick’s center.
- Snow: Vernon, TX.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Altus Afb, OK, 1.1 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 Frederick’s climate
What is the weather like in Frederick?
A typical July afternoon reaches 97°, a January night drops to 29°, and about 1 inches of snow falls in a normal winter. Milder January nights than 71% of U.S. towns; hotter July afternoons than 98% of U.S. towns.
How cold does it get in Frederick in winter?
January nights average 29°. About 64 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 37°.
How much snow does Frederick get?
About 1.2 inches in a normal winter at Vernon, TX, most of it in January, with snow on the ground about 1 days a year.
How hot does it get in Frederick?
July, with a typical high of 97° and a low of 72°. About 109 days a year reach 90° and 37 reach 100° (Altus Afb, OK).
When is the first and last frost in Frederick?
In half of years the last spring frost (32°) comes by March 26 and the first fall frost by November 10, about 229 frost-free days, at Altus Afb, OK.
What growing zone is Frederick in?
Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 12°.
What is the best time of year to visit Frederick?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April, May and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Frederick getting warmer?
Yes: 1991–2020 averaged 0.9° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 82% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Frederick.
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.