St. Thomas Primitive Baptist Church · Photo: Valis55 · CC BY-SA 3.0Summit reaches 100° on about 10 days a year, more than 91% of U.S. towns
In January the night’s low is typically 28°. Winter and summer sit 65° apart. Winters are mild: January nights here are milder than in 69% of U.S. towns. Warm coats and heating bills mark the months from December to February, when means dip under 50°.
A year in Summit at a glance
Each month’s typical high and low, and what it brings.
What stands out about Summit’s climate
Compared with towns across the U.S., with Summit’s place in Oklahoma beside it.
What a year in Summit feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 216 frost-free days a year
In half of years the last 32° night comes by April 2 and the first by November 2. Frost and day counts come from NOAA’s station at Muskogee Davis Fld, OK, 3 miles from the town’s center, at about the same height.
The 2023 USDA map puts Summit’s center in zone 7b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 9°. 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 6 inches of snow a winter
Snow, measured at Oktaha 2 Ne, OK, falls mostly in January. Precipitation (rain plus melted snow) adds up to 45 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 76 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Summit
64% 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 Muskogee Davis Fld, OK.
Living with Summit’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
216 frost-free days in zone 7b. The last frost comes by Apr 2 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 2.
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 Summit from natural hazards, river flooding is the largest share (43%); heat waves, cold waves, winter storms and ice storms together are 23%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Summit and similar climates
TownRatings has no climate map of the towns around Summit yet.
Climates most like Summit’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 |
|---|---|---|---|---|
| Summit, OK | 28° | 93° | 45" | 6.4" |
| Harrisburg, NC | 31° | 90° | 45" | 3.3" |
| Chester, SC | 32° | 91° | 44" | 2.9" |
| Pocahontas, AR | 28° | 90° | 50" | 6.3" |
| East Highland Park, VA | 28° | 90° | 46" | 8.8" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
About as warm as it used to be
The last 30 years in Summit averaged 0.3° warmer than the 1900s. The biggest change is in March (+1.6°).
A smaller shift than in all but 53 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 Summit compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Summit’s place among Oklahoma’s.
Summit weather by month
Highs, lows and precipitation from NOAA’s grid at Summit’s center; snow, wet days and snow on the ground from Oktaha 2 Ne, OK. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 49° | 28° | 2.3" | 2.6" | 6 | 2 | 34° – 47° |
| February | 55° | 32° | 2.3" | 1.6" | 5 | 1 | 37° – 52° |
| March | 63° | 41° | 3.6" | 1.1" | 7 | 1 | 46° – 62° |
| April | 72° | 49° | 4.9" | 0.0" | 7 | 0 | 55° – 67° |
| May | 80° | 58° | 5.7" | 0.0" | 9 | 0 | 66° – 76° |
| June | 88° | 67° | 4.5" | 0.0" | 8 | 0 | 73° – 83° |
| July | 93° | 71° | 3.7" | 0.0" | 6 | 0 | 77° – 89° |
| August | 92° | 70° | 3.4" | 0.0" | 5 | 0 | 75° – 87° |
| September | 85° | 62° | 4.5" | 0.0" | 7 | 0 | 69° – 81° |
| October | 74° | 50° | 4.1" | 0.0" | 6 | 0 | 56° – 69° |
| November | 62° | 40° | 3.5" | 0.3" | 6 | 0 | 45° – 58° |
| December | 52° | 31° | 3.0" | 0.8" | 5 | 1 | 31° – 47° |
| Year | 72° | 50° | 45.4" | 6.4" | 76 | 5 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 31° to 47°. June is the most reliable, staying within 9°.
Where Summit’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 Summit’s center.
- Snow: Oktaha 2 Ne, OK.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Muskogee Davis Fld, 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 Summit’s climate
What is the weather like in Summit?
A typical July afternoon reaches 93°, a January night drops to 28°, and about 6 inches of snow falls in a normal winter. Milder January nights than 69% of U.S. towns; hotter July afternoons than 90% of U.S. towns.
How cold does it get in Summit in winter?
January nights average 28°. About 72 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 34°.
How much snow does Summit get?
About 6.4 inches in a normal winter at Oktaha 2 Ne, OK, most of it in January, with snow on the ground about 5 days a year.
How hot does it get in Summit?
July, with a typical high of 93° and a low of 71°. About 68 days a year reach 90° and 10 reach 100° (Muskogee Davis Fld, OK).
When is the first and last frost in Summit?
In half of years the last spring frost (32°) comes by April 2 and the first fall frost by November 2, about 216 frost-free days, at Muskogee Davis Fld, OK.
What growing zone is Summit in?
Zone 7b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 9°.
What is the best time of year to visit Summit?
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 Summit getting warmer?
Yes: 1991–2020 averaged 0.3° warmer than 1901–2000 on NOAA’s grid. A smaller shift than all but 53 U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Summit.
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.