Late spring · Weather & things to do
Lake Hefner in May
The year's rain peaks now, with about 5.1 in (129 mm) falling in Lake Hefner, alongside highs near 81°F (27°C) and lows of 59°F (15°C).
It scores 81/100 for comfort, 6th of 12, which makes it a solid shoulder-season month.
- Avg high
- 81°F (27°C)
- Avg low
- 59°F (15°C)
- Rain
- 5.1 in (129 mm)
- Humidity
- 69%
- Cloud cover
- 55%
- Daylight
- ~13 h 53 min
- Comfort score
- 81/100 · Great
What May feels like
Highs settle around 81°F (27°C), warm enough for short sleeves.
There's a big swing between day and night, about 12°C (22°F), so mornings and evenings feel much cooler than the afternoon.
Rain is a real factor, with about 5.1 in (129 mm) across the month.
Plan around May
May is shoulder season: good weather, a step below the best months (March & April and October & November).
- Inside the wettest three-month stretch, April – June.
- Comfort slips from 87/100 in April to 81/100.
- Our Oklahoma City New Year's Eve route is planned for Dec 30 – Jan 1, a window set by the holiday season rather than the weather — May falls outside it.
What to pack for May
- Light, breathable clotheshighs average 81°F
- Sunscreen, sunglasses and a hatstrong sun this month
- A warm layer for eveningslows near 59°F
- Rain jacket and waterproof shoesfrequent rain
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Lake Hefner in May
With 5.1 in of rain, these picks lean toward food, drink and places with a roof, with outdoor options when the weather breaks.
Lake Hefner Lighthouse
The small lighthouse at the end of the East Wharf jetty, the lake's landmark and its sunset spot.
Stars and Stripes Park
Lakeside park on Hefner's south shore with open lawns, picnic shelters and a stretch of the shoreline trail.
Redrock Canyon Grill
Lakeside grill at the East Wharf known for wood-fired rotisserie chicken and a patio over the water.
Lake Hefner Trail
A paved path around much of the 2,500-acre reservoir, popular for first-day walks, runs and bike rides.
Nearby in May
- Oklahoma City in May~8 mi · highs 81°F, 5.1 in rain · similar daytime temperatures, about as wet
- Wichita Mountains in May~85 mi · highs 82°F, 4.5 in rain · similar daytime temperatures, about as wet
- Tulsa in May~98 mi · highs 79°F, 5.7 in rain · similar daytime temperatures, wetter
- Dallas in May~198 mi · highs 84°F, 4.6 in rain · 2°C (3°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Lake Hefner in May: quick answers
Is May a good time to visit Lake Hefner?
It's a good shoulder-season choice, scoring 81/100 against a best of 92 in March & April and October & November. Expect highs of 81°F (27°C) and 5.1 in (129 mm) of rain.
How hot is Lake Hefner in May?
Average highs are 81°F (27°C) and average lows 59°F (15°C), making it the 5th-warmest month by daytime highs.
Does it rain a lot in Lake Hefner in May?
Yes: about 5.1 in (129 mm) of rain falls across May on average, the wettest month of the year. The annual total is about 34.6 in (878 mm).
What should I pack for Lake Hefner in May?
Bring light, breathable clothes (highs average 81°F), sunscreen, sunglasses and a hat (strong sun this month), a warm layer for evenings (lows near 59°F), rain jacket and waterproof shoes (frequent rain) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Lake Hefner
Planning Lake Hefner in May?
Share this May plan with your group, poll everyone on dates and keep the packing list in one place.