Photo: Reagscoop · CC BY-SA 4.0Grandfield reaches 100° on about 39 days a year, more than 98% of U.S. towns
In January the night’s low is typically 29°. Only 68° separates winter nights from summer afternoons. It is a dry place: less rain and snow fall here than on 86% of U.S. towns. Garden planting can start around March 31; autumn frost returns near November 6.
A year in Grandfield at a glance
Each month’s typical high and low, and what it brings.
What stands out about Grandfield’s climate
Compared with towns across the U.S., with Grandfield’s place in Oklahoma beside it.
What a year in Grandfield feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 219 frost-free days a year
In half of years the last 32° night comes by March 31 and the first by November 6. Frost and day counts come from NOAA’s station at Grandfield 3w Mesonet, OK, 3 miles from the town’s center, at about the same height.
The 2023 USDA map puts Grandfield’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 11°. 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 3 inches of snow a winter
Snow, measured at Wichita Falls Muni Airport, falls mostly in February. Precipitation (rain plus melted snow) adds up to 30 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 73 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Grandfield
56% 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 Grandfield 3w Mesonet, OK.
Living with Grandfield’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
219 frost-free days in zone 8a. The last frost comes by Mar 31 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 6.
Months with highs of 62–84° and lows of 40° or more: March, April, May, October and November. 0.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Grandfield from natural hazards, drought is the largest share (33%); heat waves, cold waves, winter storms and ice storms together are 16%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Grandfield and similar climates
TownRatings has no climate map of the towns around Grandfield yet.
Climates most like Grandfield’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 |
|---|---|---|---|---|
| Grandfield, OK | 29° | 97° | 30" | 3.1" |
| 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 Grandfield averaged 0.8° warmer than the 1900s. The biggest change is in January (+2.0°).
A smaller shift than in 89% 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 Grandfield compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Grandfield’s place among Oklahoma’s.
Grandfield weather by month
Highs, lows and precipitation from NOAA’s grid at Grandfield’s center; snow, wet days and snow on the ground from Wichita Falls Muni Airport. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 54° | 29° | 1.2" | 0.7" | 5 | 0 | 38° – 50° |
| February | 58° | 33° | 1.4" | 1.1" | 5 | 1 | 39° – 53° |
| March | 67° | 42° | 2.4" | 0.2" | 7 | 0 | 49° – 61° |
| April | 76° | 49° | 2.7" | 0.0" | 7 | 0 | 57° – 69° |
| May | 84° | 60° | 4.2" | 0.0" | 9 | 0 | 68° – 78° |
| June | 92° | 68° | 3.6" | 0.0" | 7 | 0 | 76° – 88° |
| July | 97° | 72° | 2.5" | 0.0" | 5 | 0 | 80° – 93° |
| August | 97° | 72° | 2.5" | 0.0" | 6 | 0 | 78° – 93° |
| September | 88° | 64° | 2.9" | 0.0" | 6 | 0 | 71° – 83° |
| October | 77° | 52° | 2.9" | 0.0" | 7 | 0 | 58° – 69° |
| November | 65° | 40° | 1.9" | 0.3" | 5 | 0 | 47° – 58° |
| December | 55° | 31° | 1.6" | 0.8" | 5 | 1 | 35° – 47° |
| Year | 76° | 51° | 29.7" | 3.1" | 73 | 2 |
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 10°.
Where Grandfield’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 Grandfield’s center.
- Snow: Wichita Falls Muni Airport.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Grandfield 3w Mesonet, OK, 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 Grandfield’s climate
What is the weather like in Grandfield?
A typical July afternoon reaches 97°, a January night drops to 29°, and about 3 inches of snow falls in a normal winter. Milder January nights than 72% of U.S. towns; hotter July afternoons than 98% of U.S. towns.
How cold does it get in Grandfield in winter?
January nights average 29°. About 72 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 38°.
How much snow does Grandfield get?
About 3.1 inches in a normal winter at Wichita Falls Muni Airport, most of it in February, with snow on the ground about 2 days a year.
How hot does it get in Grandfield?
July, with a typical high of 97° and a low of 72°. About 111 days a year reach 90° and 39 reach 100° (Grandfield 3w Mesonet, OK).
When is the first and last frost in Grandfield?
In half of years the last spring frost (32°) comes by March 31 and the first fall frost by November 6, about 219 frost-free days, at Grandfield 3w Mesonet, OK.
What growing zone is Grandfield in?
Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 11°.
What is the best time of year to visit Grandfield?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April, May, October and November. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Grandfield getting warmer?
Yes: 1991–2020 averaged 0.8° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 89% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Grandfield.
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.