Updated October 2026
Fort Larned National Historic Site Weather by Month
Fort Larned National Historic Site is warmest in July, when the nearest NOAA climate station averages a high of 94°F and a low of 68°F, and coldest in January, with an average high of 44°F and an average low of 20°F. May is the wettest month, with about 5.4 inches of precipitation.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 5.8 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Fort Larned National Historic Site can differ from these, particularly with elevation.
Warmest month
Jul
94°F avg high
Coldest month
Jan
20°F avg low
Wettest month
May
5.4 in avg
Longest days
Jun
14.6 h of daylight
Average weather at Fort Larned by month
| Month | Avg high | Avg low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 44°F | 20°F | 1.0 in | 9.6 h |
| February | 47°F | 23°F | 0.7 in | 10.6 h |
| March | 58°F | 31°F | 1.6 in | 11.7 h |
| April | 68°F | 41°F | 2.1 in | 13.0 h |
| May | 78°F | 52°F | 5.4 in | 14.1 h |
| June | 89°F | 62°F | 4.4 in | 14.6 h |
| July | 94°F | 68°F | 3.0 in | 14.4 h |
| August | 91°F | 65°F | 3.0 in | 13.5 h |
| September | 84°F | 57°F | 1.6 in | 12.2 h |
| October | 71°F | 44°F | 2.7 in | 11.0 h |
| November | 57°F | 31°F | 1.0 in | 9.9 h |
| December | 45°F | 22°F | 1.0 in | 9.4 h |
| Year total | 27.5 in |
NOAA 1991–2020 climate normals from station USC00144531, 5.8 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Fort Larned is at that time of year.
Fort Larned weather by season
Winter: December to February
Average highs bottom out at 44°F in January, between 45°F in December and 47°F in February, with average lows between 20°F and 23°F. The average low is at or below freezing in all three months. Together the three months average 2.7 inches of precipitation, about 10% of the yearly total and less than in any other season. Daylight is at its shortest, about 9.4 hours in December.
Spring: March to May
Average highs climb from 58°F in March to 78°F in May, with average lows between 31°F and 52°F. The average low is at or below freezing in March. Together the three months average 9.1 inches of precipitation, about 33% of the yearly total. Daylight lengthens from about 11.7 hours in March to 14.1 in May.
Summer: June to August
Average highs peak at 94°F in July, between 89°F in June and 91°F in August, with average lows between 62°F and 68°F. The average high is 90°F or hotter in July and August. Together the three months average 10.4 inches of precipitation, about 38% of the yearly total and more than in any other season. Daylight is at its longest, about 14.6 hours in June.
Fall: September to November
Average highs fall from 84°F in September to 57°F in November, with average lows between 31°F and 57°F. The average low is at or below freezing in November. Together the three months average 5.3 inches of precipitation, about 19% of the yearly total. Daylight shortens from about 12.2 hours in September to 9.9 in November.
What the National Park Service says about the weather
Central Kansas has a four-season climate. Winter tends to be cold and dry, with average daytime highs below 40F (4C). Foehn winds blowing across the Great Plains from the Southwest periodically raise temperatures above 80F (27C). Unsettled warmer air, higher winds, and severe weather arrive in the spring and often last through early July. Late summer days hover above 90F (32C) and readings over 100F (38C) are not uncommon. Fall is variable but generally milder with showers changing to snow and ice later.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Fort Larned
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 38.18°N, 99.22°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 Fort Larned National Historic Site →
Weather and crowds together
July, the warmest month, sees about 1.5× the visitors of the park's average month. May 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 Fort Larned National Historic Site. For hotels, cabins and rentals close to the park, see where to stay near Fort Larned.
Where to stay near Fort Larned
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Frequently Asked Questions
July is the warmest month at Fort Larned National Historic Site, with an average high of 94°F and an average low of 68°F. That is the 1991–2020 average at the nearest long-record NOAA station, 5.8 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
January is the coldest month at Fort Larned National Historic Site, with an average low of 20°F and an average high of 44°F, based on NOAA 1991–2020 climate normals.
May is the wettest month, with about 5.4 inches of precipitation. February is the driest, at about 0.7 inches. The station records about 27.5 inches of precipitation in an average year.
Daylight at Fort Larned National Historic Site runs from about 9.4 hours a day in December to about 14.6 hours in June, computed from the park's latitude.
Weather at nearby parks
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USC00144531), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1979–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.