Lynbrook climate — normals and trends
Lynbrook (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 12.0 °C and it receives 1,102 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (24.3 °C on average) and the coldest is January (-0.2 °C). Rainfall peaks in March.
Lynbrook averages 70 frost days, 13 hot days (≥ 30 °C) and 118 rainy days per year.
Lynbrook has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The number of frost days there went from about 79 to 61 per year over the period.
The hottest day of the period reached 37.0 °C (on 15 July 1995) and the coldest -21.9 °C (on 18 February 1979).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
LynbrookNew York
- coords
- 40.65°, -73.67°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.0°C
Average daily high
15.4°C
Average daily low
8.9°C
Annual rainfall
1,102mm
Sunshine / day
8.9h
Mean relative humidity
71%
Average peak wind
20.4km/h
Seasonal range
24.5°C
Frost days (< 0 °C)
70 d/yr
Hot days (≥ 30 °C)
13 d/yr
Rainy days (≥ 1 mm)
118 d/yr
Annual snowfall
57.8 cm
Average feels-like high
13.8 °C
Average feels-like low
6.2 °C
Average peak gust
38.0 km/h
Tropical nights (≥ 20 °C)
54 d/yr
Solar radiation
14.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.38 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
37.0 °C
15 July 1995
Coldest day
-21.9 °C
18 February 1979
Wettest day
134 mm
14 September 1944
Windiest day
68.6 km/h
29 October 2012
Strongest gust
140.8 km/h
25 November 1950
Hottest feels-like
42.0 °C
22 July 2011
Coldest feels-like
-28.3 °C
18 February 1979
Snowiest day
32.0 cm
23 January 2016
Sunniest day
14.2 h
8 June 2023
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 2.2 °C | -0.8 °C | 34 mm | -52 mm |
| Feb | 4.3 °C | +0.3 °C | 80 mm | -2 mm |
| Mar | 11.2 °C | +3.2 °C | 107 mm | +3 mm |
| Apr | 15.3 °C | +1.6 °C | 91 mm | -5 mm |
| May | 19.5 °C | +0.3 °C | 154 mm | +58 mm |
| Jun | 25.6 °C | +1.1 °C | 62 mm | -19 mm |
| Jul | 29.5 °C | +1.9 °C | 114 mm | +21 mm |
| Aug | 26.0 °C | -0.7 °C | 41 mm | -56 mm |
| Sep | 24.0 °C | +0.9 °C | 74 mm | -13 mm |
| Oct | 18.1 °C | +0.7 °C | 122 mm | +34 mm |
| Nov | 11.4 °C | -0.1 °C | 59 mm | -34 mm |
| Dec | 4.2 °C | -1.5 °C | 74 mm | -26 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Lynbrook?
Lynbrook has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 12.0 °C and it receives 1,102 mm of precipitation per year.
What is the hottest day ever recorded in Lynbrook?
The hottest day measured in Lynbrook between 1940 and 2025 was 15 July 1995, reaching 37.0 °C.
What is the coldest day in Lynbrook?
The coldest day measured in Lynbrook between 1940 and 2025 was 18 February 1979, at -21.9 °C.
Does it snow in Lynbrook?
Yes. Lynbrook gets on average 57.8 cm of snow per year and has around 70 frost days.
Has the climate of Lynbrook warmed?
Yes: Lynbrook warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Lynbrook?
The wettest day measured in Lynbrook between 1940 and 2025 was 14 September 1944, with 134 mm of rain in 24 hours.
What was the windiest day in Lynbrook?
The windiest day measured in Lynbrook between 1940 and 2025 was 29 October 2012, with winds reaching 68.6 km/h.
What is the warmest month in Lynbrook?
The warmest month in Lynbrook is July (24.3 °C on average); the coldest is January (-0.2 °C).
How much does it rain in Lynbrook?
Lynbrook receives on average 1,102 mm of precipitation per year, spread over about 118 rainy days.
Is it sunny in Lynbrook?
Lynbrook gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Lynbrook?
The heaviest 24-hour snowfall measured in Lynbrook between 1940 and 2025 was 23 January 2016, with 32.0 cm.
Are there tropical nights in Lynbrook?
Yes: Lynbrook has on average 54 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Lynbrook?
In Lynbrook, between 1940 and 2025, the highest apparent temperature reached 42.0 °C on 22 July 2011, and the lowest was -28.3 °C on 18 February 1979.
Compare Lynbrook with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Lynbrook