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Best time to visit · Oklahoma, United States
On the climate data, the best time to visit Lake Hefner is March & April and October & November, scoring up to 92/100 with highs around 73°F (23°C) and 3.2 in (81 mm) of rain in October. May and September are good shoulder-season months. The toughest months are January and July & August, mainly because of heat.
Highs run from 47°F to 94°F across the year, and the yearly total is about 34.6 in (878 mm) of rain and snow.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high | 47°F9°C | 51°F11°C | 63°F17°C | 73°F23°C | 81°F27°C | 89°F32°C | 94°F35°C | 93°F34°C | 85°F29°C | 73°F23°C | 61°F16°C | 49°F9°C |
| Avg low | 27°F-3°C | 29°F-1°C | 40°F4°C | 49°F9°C | 59°F15°C | 69°F20°C | 73°F23°C | 72°F22°C | 63°F17°C | 50°F10°C | 38°F4°C | 29°F-2°C |
| Rain/snow | 1.3 in32 mm | 1.5 in39 mm | 2.4 in62 mm | 3.5 in89 mm | 5.1 in129 mm | 4.4 in113 mm | 3.3 in85 mm | 3.7 in94 mm | 3.0 in77 mm | 3.2 in81 mm | 1.5 in39 mm | 1.5 in38 mm |
| Humidity | 70% | 70% | 67% | 66% | 69% | 67% | 60% | 61% | 64% | 65% | 68% | 71% |
| Cloud | 48% | 56% | 55% | 52% | 55% | 44% | 39% | 40% | 38% | 40% | 43% | 51% |
| Comfort | 66 | 70 | 87 | 87 | 81 | 68 | 61 | 63 | 83 | 92 | 89 | 67 |
Source: NASA POWER (public domain), 2001–2025 monthly averages on a ~50 km satellite and reanalysis grid, so coasts and valleys can differ from what's shown. The grid cell sits at about 359 m (1,178 ft), close to Lake Hefner's own ~366 m. Precipitation includes snow as melted water; daylight is calculated from latitude. Check a forecast before you go.
The cold peaks here: highs of 47–51°F (9–11°C), and nights reach 27°F (-3°C). It's the driest season, with only about 4.3 in (109 mm) of rain or snow, 12% of the year's total. January is cold enough for snow. It holds the toughest stretch on our comfort score (January), averaging 68/100.
Temperatures climb through the season, from 63°F highs in March to 81°F by May. About 11.0 in (280 mm) of rain falls across these months, 32% of the year's total. Lows bottom out around 40°F (4°C). Comfort peaks here: March & April rank with the year's best, and the season averages 85/100.
Peak warmth: highs of 89–94°F (32–35°C). It's the wettest season, with about 11.5 in (292 mm) of rain, 33% of the year's total. Lows bottom out around 69°F (20°C). It holds the toughest stretch on our comfort score (July & August), averaging 64/100.
Temperatures slide from 85°F highs in September to 61°F by November. About 7.8 in (197 mm) of rain falls across these months, 22% of the year's total. Lows bottom out around 38°F (4°C). Comfort peaks here: October & November rank with the year's best, and the season averages 88/100.
By comfort score: 6 Great and 6 Good. Great months: March – May and September – November. Tap a month for its own guide.
On the climate data, the best time to visit Lake Hefner is March & April and October & November, scoring up to 92/100 with highs around 73°F (23°C) and 3.2 in (81 mm) of rain in October. May and September are good shoulder-season months. The toughest months are January and July & August, mainly because of heat.
May is the wettest month, averaging about 5.1 in (129 mm) of rain. January is the driest, with about 1.3 in (32 mm). The yearly total is around 34.6 in (878 mm).
January is the coldest, with average lows of 27°F (-3°C) and highs of 47°F (9°C). The warmest is July, with average highs of 94°F (35°C).
Not very: summer (June – August) humidity averages 63%, and highs peak around 94°F (35°C), so heat matters more than mugginess.
On average, yes: lows fall below 32°F (0°C) in December – February, bottoming out around 27°F (-3°C) in January.
Poll the group on March & April and October & November dates, then plan the days, packing and costs together.
