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Keansburg climate
Typical historical weather for Keansburg, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.
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Annual average
13.7°C
across all months
Warmest month
30.1°C
Jul average high
Coolest month
-1.6°C
Jan average low
Annual rainfall
1193mm
total per year
Keansburg is typically hottest in July and coolest in January, a swing of about 31.7°C across the year. About 29% of annual rainfall falls in the three wettest months (July is typically wettest, November driest).
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
| Month | Avg high | Avg low | Rainfall | Wet days | Humidity | Wind | Cloud | Solar |
|---|---|---|---|---|---|---|---|---|
| Jan | 5.4°C · record 12.2–20.3°C | -1.6°C · record -16.4–-1.8°C | 84mm | 10 | 63% | 3.9 m/s | 57% | 2.1 kWh/m² |
| Feb | 7.8°C · record 12.5–25.4°C | -0.2°C · record -15–-5.6°C | 94mm | 10 | 64% | 3.8 m/s | 61% | 2.9 kWh/m² |
| Mar | 11.7°C · record 17.2–27.7°C | 3°C · record -9.6–-2.2°C | 109mm | 11 | 58% | 4.1 m/s | 57% | 4.2 kWh/m² |
| Apr | 16.7°C · record 19.9–31.4°C | 7.7°C · record -2.6–3.5°C | 101mm | 11 | 60% | 3.8 m/s | 62% | 5.1 kWh/m² |
| May | 21.7°C · record 29–35°C | 12.8°C · record 1.9–9.6°C | 106mm | 13 | 67% | 3.3 m/s | 67% | 5.5 kWh/m² |
| Jun | 27.1°C · record 31.5–38.3°C | 18.1°C · record 10.4–13.4°C | 85mm | 11 | 66% | 3 m/s | 60% | 6.2 kWh/m² |
| Jul | 30.1°C · record 34.3–37.1°C | 22°C · record 15.1–19.7°C | 132mm | 14 | 71% | 2.6 m/s | 58% | 6 kWh/m² |
| Aug | 28.6°C · record 31.5–37.2°C | 20.8°C · record 11.9–17.7°C | 100mm | 13 | 71% | 2.7 m/s | 56% | 5.3 kWh/m² |
| Sep | 25.1°C · record 28.5–34.5°C | 17.3°C · record 7.8–13.4°C | 96mm | 10 | 73% | 3 m/s | 57% | 4.2 kWh/m² |
| Oct | 19.9°C · record 24.4–35°C | 11.4°C · record 0.2–6.3°C | 106mm | 9 | 70% | 3.5 m/s | 51% | 3.1 kWh/m² |
| Nov | 13.2°C · record 20.1–26.6°C | 4.4°C · record -8.6–-0.8°C | 77mm | 8 | 63% | 3.7 m/s | 48% | 2.4 kWh/m² |
| Dec | 7.4°C · record 14.7–18.7°C | 0.3°C · record -13.9–-3.2°C | 104mm | 10 | 67% | 3.7 m/s | 59% | 1.8 kWh/m² |
"Avg high"/"Avg low" is the mean daily high/low for that month, averaged across every year on file. The "record" figure alongside it is a different statistic — the single hottest (or coldest) hour ever recorded during that month across all years — so it can sit above or below the average and does not describe the average's year-to-year spread. A "wet day" is any day with at least 1.0mm of rain.
Year to year
Annual average temperature, 2016–2025.
Across these 10 years, the annual average has moved by about +0.09°C per decade. That’s a short window for a reliable long-term climate trend — treat it as indicative, not definitive.
Annual rainfall has moved by about -203.46mm per decade over the same period.
2025 (the most recent year on file) averaged 13.264336531129624°C, below the 9-year baseline of 13.8°C by 2.21 standard deviations — a genuinely unusual year.
Typical extremes per year
Rainy days
129.9 days
≥1.0mm rain
Heavy rain days
14.8 days
≥20mm rain
Extreme heat days
0 days
daily high ≥40°C
Frost days
62.5 days
daily low ≤0°C
Averaged across 10 years on file. Thresholds match PastClimate's data pipeline definitions — see data & sources.
Records on file
Ranked across 10 years of data currently on file (2016–2025).
Hottest day
38.3°C
24 June 2025
2025 was 2.21 SD below the 9-year average that year
Coldest day
-16.4°C
7 January 2018
2018 was 1.45 SD below the 9-year average that year
Wettest day
141.1mm
26 October 2021
2021 was 0.99 SD above the 9-year average that year
Windiest day
9.3m/s
23 January 2016
2016 was 0.15 SD above the 9-year average that year
See the detail: Keansburg on 26 October 2021.
Nearby cities
Marlboro
Same ERA5 grid cell
West Freehold
Same ERA5 grid cell
Freehold
Same ERA5 grid cell
Robertsville
Same ERA5 grid cell
Colts Neck
Same ERA5 grid cell
Matawan
Same ERA5 grid cell
Want a side-by-side view instead? Compare Keansburg with another city.
Frequently asked questions about Keansburg's climate
What is the hottest month in Keansburg?
July is typically the warmest month in Keansburg, with an average high of 30.1°C. January is typically the coolest, averaging -1.6°C overnight.
How much does it rain in Keansburg?
Keansburg gets about 1193mm of rain a year on average, with roughly 29% of it falling in the three wettest months (July is typically the wettest, November the driest).
How many extremely hot or cold days does Keansburg have?
On average, Keansburg sees about 0 day(s) a year at or above 40°C and about 62.5 day(s) at or below 0°C, based on 10 years of data.
Is Keansburg getting warmer?
Across the 10 years on file (2016–2025), the annual average temperature has moved by about +0.09°C per decade. That's a short window for a reliable long-term climate trend — treat it as indicative, not definitive.
What is the hottest day on record for Keansburg?
The hottest day on file is 24 June 2025 at 38.3°C, out of 10 year(s) searched.
Data & provenance
↓ Download monthly CSVData source & coverage — ERA5 reanalysis, 2016–2025 (10 years)details
- Source
- ERA5 reanalysis, accessed via the Copernicus Climate Change Service (C3S) Climate Data Store
- Data type
- Reanalysis — a physically consistent reconstruction combining a forecast model with historical observations, not a live station reading or a forecast
- Coverage
- 2016–2025 (10 years) for United States
- Location
- Keansburg — 40.250°, -74.250°, ERA5 grid cell center, 23.6 km from requested point
- Time zone
- America/New_York
- What's shown here
- Monthly and annual averages, and dated extreme-value records, derived from an hourly base record.
- Spatial resolution
- 0.25° (~25 km) distributed grid — ERA5's native model resolution is finer; this is the publicly distributed regridded product
- Version / refreshed
- Methodology v2026.07 · data last refreshed December 31, 2025
- Limitations
- A model reconstruction, not a station observation — hyper-local extremes (a single storm cell, an urban heat pocket) can differ from a nearby gauge. See the full methodology.
- Attribution
- Generated using Copernicus Climate Change Service information
Cite this data
PastClimate (2026-07-17). Historical climate data for Keansburg, United States (40.25°N, 74.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Keansburg, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Keansburg, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Keansburg, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-17},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.