Updated October 2026
Upper Delaware Scenic & Recreational River Weather by Month
Upper Delaware Scenic & Recreational River is warmest in July, when the nearest NOAA climate station averages a high of 82°F and a low of 59°F, and coldest in January, with an average high of 33°F and an average low of 15°F. June and October are the wettest months, with about 4.8 inches of precipitation each.
These figures are NOAA's 1991–2020 climate normals, the 30-year average for each calendar month, from the nearest long-record weather station, 1.5 miles from the park's reference point. A single station cannot describe a whole park: temperatures elsewhere in Upper Delaware Scenic & Recreational River can differ from these, particularly with elevation.
Warmest month
Jul
82°F avg high
Coldest month
Jan
15°F avg low
Longest days
Jun
15.0 h of daylight
Average weather at Upper Delaware by month
| Month | Avg high | Avg low | Precipitation | Daylight |
|---|---|---|---|---|
| January | 33°F | 15°F | 2.6 in | 9.3 h |
| February | 37°F | 17°F | 2.5 in | 10.4 h |
| March | 46°F | 24°F | 3.5 in | 11.7 h |
| April | 59°F | 35°F | 3.8 in | 13.1 h |
| May | 71°F | 45°F | 3.8 in | 14.3 h |
| June | 78°F | 54°F | 4.8 in | 15.0 h |
| July | 82°F | 59°F | 4.4 in | 14.7 h |
| August | 80°F | 57°F | 4.6 in | 13.7 h |
| September | 74°F | 49°F | 4.7 in | 12.3 h |
| October | 62°F | 39°F | 4.8 in | 10.8 h |
| November | 49°F | 29°F | 3.3 in | 9.6 h |
| December | 38°F | 21°F | 3.7 in | 9.0 h |
| Year total | 46.5 in |
NOAA 1991–2020 climate normals from station USC00365738, 1.5 miles from the park's reference point. Daylight is the monthly average, computed from the park's latitude. Each month links to how crowded Upper Delaware is at that time of year.
Upper Delaware weather by season
Winter: December to February
Average highs bottom out at 33°F in January, between 38°F in December and 37°F in February, with average lows between 15°F and 21°F. The average low is at or below freezing in all three months. Together the three months average 8.8 inches of precipitation, about 19% of the yearly total and less than in any other season. Daylight is at its shortest, about 9.0 hours in December.
Spring: March to May
Average highs climb from 46°F in March to 71°F in May, with average lows between 24°F and 45°F. The average low is at or below freezing in March. Together the three months average 11.1 inches of precipitation, about 24% of the yearly total. Daylight lengthens from about 11.7 hours in March to 14.3 in May.
Summer: June to August
Average highs peak at 82°F in July, between 78°F in June and 80°F in August, with average lows between 54°F and 59°F. Together the three months average 13.8 inches of precipitation, about 30% of the yearly total and more than in any other season. Daylight is at its longest, about 15.0 hours in June.
Fall: September to November
Average highs fall from 74°F in September to 49°F in November, with average lows between 29°F and 49°F. The average low is at or below freezing in November. Together the three months average 12.8 inches of precipitation, about 28% of the yearly total. Daylight shortens from about 12.3 hours in September to 9.6 in November.
What the National Park Service says about the weather
Spring: Temperatures usually range from lows of 26°F to highs of 80°F with average rainfall of 5 inches. Summer: Temperatures usually range from lows of 55°F to highs of 85°F with average rainfall of 4 inches. Fall: Temperatures usually range from lows of 30°F to highs of 83°F. Fall foliage is at its peak sometime in October as daily mountain temperatures vary frequently and influence the change. Winter: Temperatures usually range from lows of 15°F to highs of 49°F.
Weather description courtesy of the National Park Service — official park site.
Today's forecast for Upper Delaware
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 41.66°N, 75.04°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 Upper Delaware Scenic & Recreational River →
Weather and crowds together
July is both the warmest month and the busiest, with about 2.9× the visitors of the park's average month. December is the quietest. To see those crowds set against the weather for all twelve months, read the best time to visit Upper Delaware Scenic & Recreational River. For hotels, cabins and rentals close to the park, see where to stay near Upper Delaware.
Where to stay near Upper Delaware
Picked a month for Upper Delaware Scenic & Recreational River? Compare hotels, cabins and vacation rentals near the park with live availability and prices.
Top-rated places to stay near Upper Delaware
Prices for Oct 16–18, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Upper Delaware?
Get crowd forecasts and lodging deals for Upper Delaware by email. No spam, unsubscribe anytime.
Frequently Asked Questions
July is the warmest month at Upper Delaware Scenic & Recreational River, with an average high of 82°F and an average low of 59°F. That is the 1991–2020 average at the nearest long-record NOAA station, 1.5 miles from the park's reference point. Temperatures inside the park can differ, particularly with elevation.
January is the coldest month at Upper Delaware Scenic & Recreational River, with an average low of 15°F and an average high of 33°F, based on NOAA 1991–2020 climate normals.
June and October are the wettest months, with about 4.8 inches of precipitation each. February is the driest, at about 2.5 inches. The station records about 46.5 inches of precipitation in an average year.
Daylight at Upper Delaware Scenic & Recreational River runs from about 9.0 hours a day in December to about 15.0 hours in June, computed from the park's latitude.
Weather at nearby parks
37 mi away · warmest in July (84°F)
37 mi away · warmest in July (85°F)
57 mi away · warmest in July (83°F)
58 mi away · warmest in July (83°F)
59 mi away · warmest in July (83°F)
67 mi away · warmest in July (86°F)
Keep exploring
Sources: NOAA NCEI U.S. Climate Normals 1991–2020 (station USC00365738), daylight computed from latitude, weather description from the National Park Service, crowd levels from National Park Service Visitor Use Statistics (1980–2025). Updated 2026-10-11. Lodging results are provided by Stay22; WhenToVisitParks may earn a commission from bookings, at no extra cost to you.