Photo: Mr. Matté (if there is an issue with this image, contact me using this image's Commons talk page, my Commons user talk page, or my English Wikipedia user talk page; I'll know about it a lot faster) · CC BY-SA 4.0Weather without surprises: Mount Ephraim keeps close to the norm for U.S. towns
The depth of winter brings overnight lows near 26°. By precipitation alone, it ranks wetter than 67% of U.S. towns. Decade by decade the climate has edged up, 2.1° above 1901–2000. Warm coats and heating bills mark the months from November to March, when means dip under 50°.
A year in Mount Ephraim at a glance
Each month’s typical high and low, and what it brings.
What stands out about Mount Ephraim’s climate
Compared with towns across the U.S., with Mount Ephraim’s place in New Jersey beside it.
What a year in Mount Ephraim feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 199 frost-free days a year
In half of years the last 32° night comes by April 15 and the first by October 31. Frost and day counts come from NOAA’s station at Pennsauken 1n, NJ, 7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Mount Ephraim’s center in zone 7b: the coldest night of a typical winter, averaged over 1991–2020, reaches about 9°. 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 22 inches of snow a winter
Snow, measured at Somerdale 4 Sw, NJ, falls mostly in February. Precipitation (rain plus melted snow) adds up to 46 inches a year; July is the wettest month and February the driest. Rain or snow falls on about 130 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Mount Ephraim
81% of the work is heating. Months averaging under 55° run from November 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 Pennsauken 1n, NJ.
Living with Mount Ephraim’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
199 frost-free days in zone 7b. The last frost comes by Apr 15 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 31.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 0.1 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Mount Ephraim from natural hazards, river flooding is the largest share (61%); heat waves, cold waves, winter storms and ice storms together are 17%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Mount Ephraim and its neighbors
Every town next door is within a degree of Mount Ephraim in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Mount Ephraim’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 |
|---|---|---|---|---|
| Mount Ephraim, NJ | 26° | 88° | 46" | 22" |
| University of Virginia, VA | 27° | 88° | 46" | 17" |
| Fort Thomas, KY | 24° | 87° | 45" | 23" |
| South Charleston, WV | 25° | 87° | 46" | 32" |
| Rolla, MO | 23° | 88° | 44" | 17" |
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 Mount Ephraim averaged 2.1° warmer than the 1900s. The biggest change is in December (+3.5°).
A bigger shift than in 92% 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 Mount Ephraim compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Mount Ephraim’s place among New Jersey’s.
Mount Ephraim weather by month
Highs, lows and precipitation from NOAA’s grid at Mount Ephraim’s center; snow, wet days and snow on the ground from Somerdale 4 Sw, NJ. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 42° | 26° | 3.4" | 5.8" | 12 | 7 | 26° – 41° |
| February | 45° | 27° | 2.8" | 8.2" | 10 | 8 | 25° – 43° |
| March | 53° | 34° | 4.2" | 2.7" | 12 | 3 | 38° – 52° |
| April | 65° | 43° | 3.7" | 0.3" | 12 | 0 | 51° – 59° |
| May | 74° | 53° | 3.5" | 0.0" | 13 | 0 | 59° – 69° |
| June | 83° | 63° | 4.2" | 0.0" | 11 | 0 | 70° – 77° |
| July | 88° | 68° | 4.8" | 0.0" | 11 | 0 | 73° – 81° |
| August | 86° | 66° | 4.5" | 0.0" | 10 | 0 | 72° – 80° |
| September | 79° | 59° | 4.3" | 0.0" | 9 | 0 | 66° – 73° |
| October | 67° | 48° | 3.8" | 0.0" | 10 | 0 | 53° – 64° |
| November | 56° | 38° | 3.2" | 0.2" | 9 | 0 | 41° – 52° |
| December | 46° | 31° | 4.2" | 4.7" | 11 | 3 | 31° – 51° |
| Year | 65° | 46° | 46.4" | 21.9" | 130 | 21 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 31° to 51°. September is the most reliable, staying within 7°.
Where Mount Ephraim’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 Mount Ephraim’s center.
- Snow: Somerdale 4 Sw, NJ.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Pennsauken 1n, NJ, 7 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 Mount Ephraim’s climate
What is the weather like in Mount Ephraim?
A typical July afternoon reaches 88°, a January night drops to 26°, and about 22 inches of snow falls in a normal winter. Milder January nights than 66% of U.S. towns; hotter July afternoons than 65% of U.S. towns.
How cold does it get in Mount Ephraim in winter?
January nights average 26°. About 103 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 26°.
How much snow does Mount Ephraim get?
About 22 inches in a normal winter at Somerdale 4 Sw, NJ, most of it in February, with snow on the ground about 21 days a year.
How hot does it get in Mount Ephraim?
July, with a typical high of 88° and a low of 68°. About 33 days a year reach 90° and 2 reach 100° (Pennsauken 1n, NJ).
When is the first and last frost in Mount Ephraim?
In half of years the last spring frost (32°) comes by April 15 and the first fall frost by October 31, about 199 frost-free days, at Pennsauken 1n, NJ.
What growing zone is Mount Ephraim in?
Zone 7b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 9°.
What is the best time of year to visit Mount Ephraim?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Mount Ephraim getting warmer?
Yes: 1991–2020 averaged 2.1° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 92% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Mount Ephraim.
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.