Photo: Doug Kerr from Albany, NY, United States · CC BY-SA 2.0Summers in Conneaut Lake are cooler than in 86% of U.S. towns
The depth of winter brings overnight lows near 18°. Only 64° separates winter nights from summer afternoons. In January, nights here are colder than in 71% of U.S. towns. Comfortable outdoor weather lasts from May to September, with highs of 70–81°.
A year in Conneaut Lake at a glance
Each month’s typical high and low, and what it brings.
What stands out about Conneaut Lake’s climate
Compared with towns across the U.S., with Conneaut Lake’s place in Pennsylvania beside it.
What a year in Conneaut Lake feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 177 frost-free days a year
In half of years the last 32° night comes by April 30 and the first by October 23. Frost and day counts come from NOAA’s station at Linesville 1 S, PA, 7 miles from the town’s center, 110 ft lower.
The 2023 USDA map puts Conneaut Lake’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −6°. 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 64 inches of snow a winter
Snow, measured at Linesville 1 S, PA, falls mostly in January. Precipitation (rain plus melted snow) adds up to 44 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 167 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Conneaut Lake
92% 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 Linesville 1 S, PA.
Living with Conneaut Lake’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
177 frost-free days in zone 6a. The last frost comes by Apr 30 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 23.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 0.4 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Conneaut Lake from natural hazards, river flooding is the largest share (85%); heat waves, cold waves, winter storms and ice storms together are 2%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Conneaut Lake and similar climates
TownRatings has no climate map of the towns around Conneaut Lake yet.
Climates most like Conneaut Lake’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 |
|---|---|---|---|---|
| Conneaut Lake, PA | 18° | 81° | 44" | 64" |
| Rowley, MA | 18° | 81° | 48" | 62" |
| Newmarket, NH | 16° | 81° | 47" | 65" |
| Frostburg, MD | 20° | 82° | 44" | 72" |
| Plattekill, NY | 17° | 83° | 45" | 59" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in Conneaut Lake averaged 1.8° warmer than the 1900s. The biggest change is in December (+3.0°).
A bigger shift than in 79% 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 Conneaut Lake compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Conneaut Lake’s place among Pennsylvania’s.
Conneaut Lake weather by month
Highs, lows and precipitation from NOAA’s grid at Conneaut Lake’s center; snow, wet days and snow on the ground from Linesville 1 S, PA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 33° | 18° | 3.1" | 20.2" | 18 | 21 | 17° – 36° |
| February | 36° | 18° | 2.5" | 11.6" | 14 | 17 | 11° – 36° |
| March | 45° | 26° | 3.3" | 8.9" | 14 | 9 | 28° – 48° |
| April | 59° | 36° | 3.8" | 2.0" | 14 | 1 | 41° – 53° |
| May | 70° | 46° | 3.9" | 0.0" | 14 | 0 | 50° – 64° |
| June | 78° | 55° | 4.7" | 0.0" | 14 | 0 | 61° – 70° |
| July | 81° | 59° | 4.3" | 0.0" | 12 | 0 | 65° – 74° |
| August | 80° | 57° | 3.9" | 0.0" | 11 | 0 | 64° – 73° |
| September | 74° | 51° | 4.1" | 0.0" | 11 | 0 | 59° – 67° |
| October | 62° | 41° | 4.0" | 0.0" | 15 | 0 | 47° – 58° |
| November | 49° | 32° | 3.3" | 3.9" | 14 | 3 | 34° – 47° |
| December | 38° | 24° | 3.4" | 17.4" | 17 | 13 | 21° – 42° |
| Year | 59° | 39° | 44.3" | 64.0" | 167 | 63 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 11° to 36°. September is the most reliable, staying within 8°.
Where Conneaut Lake’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 Conneaut Lake’s center.
- Snow: Linesville 1 S, PA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Linesville 1 S, PA, 7 miles from the town’s center, 110 ft lower; 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 Conneaut Lake’s climate
What is the weather like in Conneaut Lake?
A typical July afternoon reaches 81°, a January night drops to 18°, and about 64 inches of snow falls in a normal winter. Colder January nights than 71% of U.S. towns; cooler July afternoons than 86% of U.S. towns.
How cold does it get in Conneaut Lake in winter?
January nights average 18°. About 136 nights a year reach 32° or below and 8 reach 0° or below. In the coldest January of the last 30 years the month averaged 17°.
How much snow does Conneaut Lake get?
About 64 inches in a normal winter at Linesville 1 S, PA, most of it in January, with snow on the ground about 63 days a year.
How hot does it get in Conneaut Lake?
July, with a typical high of 81° and a low of 59°. About 3 days a year reach 90° (Linesville 1 S, PA).
When is the first and last frost in Conneaut Lake?
In half of years the last spring frost (32°) comes by April 30 and the first fall frost by October 23, about 177 frost-free days, at Linesville 1 S, PA.
What growing zone is Conneaut Lake in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −6°.
What is the best time of year to visit Conneaut Lake?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Conneaut Lake getting warmer?
Yes: 1991–2020 averaged 1.8° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 79% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Conneaut Lake.
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.