Updated October 2026
Oklahoma City National Memorial Weather by Month
Oklahoma City National Memorial is warmest in July, when the nearest NOAA climate station averages a high of 93°F and a low of 70°F, and coldest in January, with an average high of 49°F and an average low of 27°F. May is the wettest month, with about 5.3 inches of precipitation. Snowfall is heaviest in January, February and December, at about 1.8 inches.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 7.5 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Oklahoma City National Memorial can differ from these, particularly with elevation.
Warmest month
Jul
93°F avg high
Coldest month
Jan
27°F avg low
Wettest month
May
5.3 in avg
Longest days
Jun
14.4 h of daylight
Average weather at Oklahoma City by month
| Month | Avg high | Avg low | Precipitation | Snowfall | Daylight |
|---|---|---|---|---|---|
| January | 49°F | 27°F | 1.3 in | 1.8 in | 9.9 h |
| February | 54°F | 31°F | 1.4 in | 1.8 in | 10.7 h |
| March | 63°F | 40°F | 2.6 in | 0.8 in | 11.7 h |
| April | 71°F | 48°F | 3.6 in | 0.0 in | 12.9 h |
| May | 79°F | 58°F | 5.3 in | 0.0 in | 13.9 h |
| June | 88°F | 66°F | 4.5 in | 0.0 in | 14.4 h |
| July | 93°F | 70°F | 3.6 in | 0.0 in | 14.2 h |
| August | 92°F | 69°F | 3.6 in | 0.0 in | 13.3 h |
| September | 84°F | 62°F | 3.7 in | 0.0 in | 12.2 h |
| October | 73°F | 49°F | 3.3 in | 0.0 in | 11.1 h |
| November | 61°F | 38°F | 1.7 in | 0.5 in | 10.1 h |
| December | 50°F | 30°F | 1.8 in | 1.8 in | 9.6 h |
| Year total | 36.4 in | 6.7 in |
NOAA 1991–2020 climate normals from station USW00013967, 7.5 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Oklahoma City is at that time of year.
Oklahoma City weather by season
Winter: December to February
Average highs bottom out at 49°F in January, between 50°F in December and 54°F in February, with average lows between 27°F and 31°F. The average low is at or below freezing in all three months. Together the three months average 4.5 inches of precipitation, about 12% of the yearly total and less than in any other season. Snowfall averages about 5.4 inches for the season. Daylight is at its shortest, about 9.6 hours in December.
Spring: March to May
Average highs climb from 63°F in March to 79°F in May, with average lows between 40°F and 58°F. Together the three months average 11.5 inches of precipitation, about 32% of the yearly total. Snowfall averages about 0.8 inches for the season. Daylight lengthens from about 11.7 hours in March to 13.9 in May.
Summer: June to August
Average highs peak at 93°F in July, between 88°F in June and 92°F in August, with average lows between 66°F and 70°F. The average high is 90°F or hotter in July and August. Together the three months average 11.7 inches of precipitation, about 32% of the yearly total and more than in any other season. Daylight is at its longest, about 14.4 hours in June.
Fall: September to November
Average highs fall from 84°F in September to 61°F in November, with average lows between 38°F and 62°F. Together the three months average 8.7 inches of precipitation, about 24% of the yearly total. Snowfall averages about 0.5 inches for the season. Daylight shortens from about 12.2 hours in September to 10.1 in November.
What the National Park Service says about the weather
Summers are very warm with temperatures averaging mid-high 90’s. Also, be mindful of the heat index. Spring weather brings mild temperatures, 60’s-70’s, but the ability to produce severe storms that could include heavy rains, strong winds, hail, and tornadoes. While winters are generally mild delivering temperatures in the 30’s and 40’s, the wind chill can be brutal. No matter the season you are planning to visit, be prepared for the winds to be gusting.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Oklahoma City
Averages describe a typical month, not this week. For current conditions and the seven-day outlook, the National Weather Service issues a forecast for the park's reference point at 35.47°N, 97.52°W. It covers that one spot, so other elevations in the park can differ from it, as they do from the averages above.
National Weather Service forecast for Oklahoma City National Memorial →
Weather and crowds together
July, the warmest month, sees about 1.6× the visitors of the park's average month. June is the busiest month of the year and January the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit Oklahoma City National Memorial. For hotels, cabins and rentals close to the park, see where to stay near Oklahoma City.
Where to stay near Oklahoma City
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Top-rated places to stay near Oklahoma City
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Frequently Asked Questions
July is the warmest month at Oklahoma City National Memorial, with an average high of 93°F and an average low of 70°F. That is the 1991–2020 average at the nearest long-record NOAA station, 7.5 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
January is the coldest month at Oklahoma City National Memorial, with an average low of 27°F and an average high of 49°F, based on NOAA 1991–2020 climate normals.
May is the wettest month, with about 5.3 inches of precipitation. January is the driest, at about 1.3 inches. The station records about 36.4 inches of precipitation in an average year.
Yes. The nearest long-record NOAA station, 7.5 miles from the park's reference point, averages about 6.7 inches of snow a year. January, February and December are the snowiest months, at about 1.8 inches each. The station averages at least a tenth of an inch of snow in 5 of the 12 months.
Weather at nearby parks
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USW00013967), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (2000–2003). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.