Photo: Doug Kerr · CC BY-SA 2.0A middle-of-the-road climate: Selinsgrove is close to most U.S. towns on every count
Peak summer warmth arrives in July, with afternoons near 85°. Seasons differ by 65°, from the coldest nights to the warmest afternoons. The outdoor season runs from May to June and August to October, with highs of 64–83°.
A year in Selinsgrove at a glance
Each month’s typical high and low, and what it brings.
What stands out about Selinsgrove’s climate
Compared with towns across the U.S., with Selinsgrove’s place in Pennsylvania beside it.
What a year in Selinsgrove feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 178 frost-free days a year
In half of years the last 32° night comes by April 25 and the first by October 22. Frost and day counts come from NOAA’s station at Selinsgrove 2 S, PA, 1.2 miles from the town’s center, at about the same height.
The 2023 USDA map puts Selinsgrove’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −1°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 29 inches of snow a winter
Snow, measured at Selinsgrove 2 S, PA, falls mostly in January. Precipitation (rain plus melted snow) adds up to 43 inches a year; September is the wettest month and February the driest. Rain or snow falls on about 133 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Selinsgrove
89% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Selinsgrove 2 S, PA.
Living with Selinsgrove’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
178 frost-free days in zone 6b. The last frost comes by Apr 25 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 22.
Months with highs of 62–84° and lows of 40° or more: May, June, August, September and October. 0.4 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Selinsgrove from natural hazards, river flooding is the largest share (83%); heat waves, cold waves, winter storms and ice storms together are 3%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Selinsgrove and its neighbors
Every town next door is within a degree of Selinsgrove in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Selinsgrove’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Selinsgrove, PA | 20° | 85° | 43" | 29" |
| Reynoldsburg, OH | 21° | 84° | 43" | 28" |
| Speedway, IN | 20° | 85° | 43" | 26" |
| Wappinger, NY | 19° | 85° | 44" | 36" |
| New Martinsville, WV | 22° | 85° | 46" | 27" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Selinsgrove averaged 1.2° warmer than the 1900s. The biggest change is in December (+2.8°).
A smaller shift than in 59% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Selinsgrove compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Selinsgrove’s place among Pennsylvania’s.
Selinsgrove weather by month
Highs, lows and precipitation from NOAA’s grid at Selinsgrove’s center; snow, wet days and snow on the ground from Selinsgrove 2 S, PA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 36° | 20° | 3.0" | 9.7" | 12 | 12 | 19° – 36° |
| February | 39° | 22° | 2.3" | 7.6" | 10 | 11 | 18° – 37° |
| March | 49° | 29° | 3.3" | 5.6" | 11 | 6 | 32° – 49° |
| April | 62° | 38° | 3.7" | 0.6" | 12 | 0 | 45° – 55° |
| May | 72° | 49° | 3.7" | 0.0" | 13 | 0 | 55° – 66° |
| June | 81° | 58° | 4.1" | 0.0" | 12 | 0 | 66° – 72° |
| July | 85° | 62° | 4.3" | 0.0" | 11 | 0 | 69° – 77° |
| August | 83° | 61° | 3.7" | 0.0" | 11 | 0 | 68° – 75° |
| September | 76° | 53° | 4.5" | 0.0" | 10 | 0 | 62° – 68° |
| October | 64° | 42° | 3.8" | 0.2" | 11 | 0 | 48° – 60° |
| November | 51° | 33° | 3.0" | 1.2" | 10 | 1 | 37° – 46° |
| December | 40° | 26° | 3.2" | 4.1" | 11 | 6 | 24° – 42° |
| Year | 61° | 41° | 42.5" | 29.0" | 133 | 35 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 18° to 37°. June is the most reliable, staying within 6°.
Where Selinsgrove’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Selinsgrove’s center.
- Snow: Selinsgrove 2 S, PA (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Selinsgrove 2 S, PA, 1.2 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Selinsgrove’s climate
What is the weather like in Selinsgrove?
A typical July afternoon reaches 85°, a January night drops to 20°, and about 29 inches of snow falls in a normal winter. Colder January nights than 57% of U.S. towns; cooler July afternoons than 52% of U.S. towns.
How cold does it get in Selinsgrove in winter?
January nights average 20°. About 131 nights a year reach 32° or below and 2 reach 0° or below. In the coldest January of the last 30 years the month averaged 19°.
How much snow does Selinsgrove get?
About 29 inches in a normal winter at Selinsgrove 2 S, PA, most of it in January, with snow on the ground about 35 days a year.
How hot does it get in Selinsgrove?
July, with a typical high of 85° and a low of 62°. About 17 days a year reach 90° (Selinsgrove 2 S, PA).
When is the first and last frost in Selinsgrove?
In half of years the last spring frost (32°) comes by April 25 and the first fall frost by October 22, about 178 frost-free days, at Selinsgrove 2 S, PA.
What growing zone is Selinsgrove in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −1°.
What is the best time of year to visit Selinsgrove?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Selinsgrove getting warmer?
Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 59% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Selinsgrove.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.