Hopatcong Hills, New Jersey Climate
United States
Pop. 16,267 Elev. 346 m / 1,135 ft
TZ: America/New_York (UTC-4) ·
Summers in Hopatcong Hills are warm, with July highs around 86°F (30°C), while winters are frigid with January lows of 22°F (-6°C). Humidity pushes the summer feels-like temperature to 96°F (36°C), while wind chill can drive winter lows to 14°F (-10°C). Expect around 58 rainy days annually (34.5 in / 875 mm total), with snow on 9 days and 40 in (1006 mm) of annual accumulation. The city averages 114 sunny days per year and around 26 thunderstorm days. Nearby lake water reaches 80°F (27°C) in summer.
| Temperature | 86°F (30°C) high | 22°F (-6°C) low |
| Feels like | 96°F (35°C) high | 14°F (-10°C) low |
| Rain | 58 days | 34.5 in (875 mm) /yr |
| Snow | 9 days | 39.6 in (1006 mm) /yr |
| Sky | 114 sunny | 26 stormy |
| Wind | 2.9 mph (1.3 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Jun, Jul, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
48
Jan 66
Feb 52
Mar 70
Apr 74
May 67
Jun 59
Jul 44
Aug 56
Sep 41
Oct 57
Nov 60
Dec Humidity (%)
53
Jan 55
Feb 52
Mar 54
Apr 72
May 71
Jun 69
Jul 61
Aug 64
Sep 63
Oct 60
Nov 60
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 32 mi Newark Liberty International Airport (EWR)
Ski resort 18 mi Mountain Creek
National park 147 mi Connecticut River Greenway State Park
Mountain peak
(4,971 ft) 222 mi Schofield Cobble
Hospital 6 mi Dover General Hospital / Saint Clare's Dover Hospital
Hiking trail 1 mi Lake Hopatcong Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 34°F 1°C | 22°F -6°C | 0.7 in 17 mm | 4.9 in125 mm | 13 |
| February | 39°F 4°C | 26°F -3°C | 2.0 in 50 mm | 13.3 in338 mm | 5 |
| March | 56°F 13°C | 35°F 2°C | 3.5 in 88 mm | 0.1 in2 mm | 11 |
| April | 62°F 17°C | 44°F 6°C | 3.8 in 96 mm | 4.1 in105 mm | 5 |
| May | 69°F 20°C | 53°F 12°C | 7.2 in 184 mm | — | 5 |
| June | 79°F 26°C | 63°F 17°C | 2.6 in 66 mm | — | 8 |
| July | 86°F 30°C | 69°F 20°C | 3.5 in 90 mm | — | 8 |
| August | 81°F 27°C | 61°F 16°C | 1.6 in 42 mm | — | 14 |
| September | 78°F 25°C | 58°F 14°C | 2.9 in 74 mm | — | 9 |
| October | 64°F 18°C | 46°F 8°C | 3.4 in 86 mm | — | 18 |
| November | 51°F 10°C | 36°F 2°C | 1.9 in 49 mm | 1.7 in44 mm | 9 |
| December | 36°F 2°C | 24°F -5°C | 1.4 in 35 mm | 15.4 in391 mm | 9 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 13 | 0 |
| February | 5 | 1 |
| March | 11 | 1 |
| April | 5 | 3 |
| May | 5 | 6 |
| June | 8 | 2 |
| July | 8 | 5 |
| August | 14 | 2 |
| September | 9 | 3 |
| October | 18 | 2 |
| November | 9 | 1 |
| December | 9 | 0 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 40°F 5°C |
| April | 50°F 10°C |
| May | 61°F 16°C |
| June | 71°F 21°C |
| July | 80°F 27°C |
| August | 73°F 23°C |
| September | 68°F 20°C |
| October | 58°F 14°C |
| November | 44°F 7°C |
| December | 33°F 1°C |