Lockport climate — normals and trends
Lockport (United States) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.0 °C and it receives 1,003 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 (21.6 °C on average) and the coldest is February (-3.5 °C). Rainfall peaks in April.
Lockport averages 105 frost days, 2 hot days (≥ 30 °C) and 146 rainy days per year.
Lockport 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 118 to 92 per year over the period.
The hottest day of the period reached 33.2 °C (on 9 August 1949) and the coldest -25.1 °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
LockportNew York
- coords
- 43.17°, -78.69°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.0°C
Average daily high
12.1°C
Average daily low
6.0°C
Annual rainfall
1,003mm
Sunshine / day
8.7h
Mean relative humidity
72%
Average peak wind
23.7km/h
Seasonal range
25.1°C
Frost days (< 0 °C)
105 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
146 d/yr
Annual snowfall
116.6 cm
Average feels-like high
9.5 °C
Average feels-like low
2.3 °C
Average peak gust
41.0 km/h
Tropical nights (≥ 20 °C)
23 d/yr
Solar radiation
14.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.28 · 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
33.2 °C
9 August 1949
Coldest day
-25.1 °C
18 February 1979
Wettest day
84 mm
28 September 1967
Windiest day
60.9 km/h
15 March 1959
Strongest gust
107.3 km/h
16 February 1967
Hottest feels-like
38.1 °C
3 September 1953
Coldest feels-like
-32.3 °C
17 January 1982
Snowiest day
27.9 cm
7 February 1942
Sunniest day
14.9 h
14 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -0.9 °C | -0.5 °C | 61 mm | -16 mm |
| Feb | -0.2 °C | +0.1 °C | 90 mm | +23 mm |
| Mar | 7.8 °C | +4.0 °C | 73 mm | -7 mm |
| Apr | 10.3 °C | +0.6 °C | 85 mm | -7 mm |
| May | 14.3 °C | -1.0 °C | 115 mm | +30 mm |
| Jun | 21.6 °C | +0.5 °C | 60 mm | -26 mm |
| Jul | 26.4 °C | +1.6 °C | 65 mm | -22 mm |
| Aug | 24.5 °C | 0.0 °C | 67 mm | -12 mm |
| Sep | 22.0 °C | +1.0 °C | 32 mm | -55 mm |
| Oct | 15.9 °C | +1.0 °C | 98 mm | +9 mm |
| Nov | 7.7 °C | -0.6 °C | 87 mm | -1 mm |
| Dec | 1.9 °C | -0.7 °C | 98 mm | +11 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 Lockport?
Lockport has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 9.0 °C and it receives 1,003 mm of precipitation per year.
What is the hottest day ever recorded in Lockport?
The hottest day measured in Lockport between 1940 and 2025 was 9 August 1949, reaching 33.2 °C.
What is the coldest day in Lockport?
The coldest day measured in Lockport between 1940 and 2025 was 18 February 1979, at -25.1 °C.
Does it snow in Lockport?
Yes. Lockport gets on average 116.6 cm of snow per year and has around 105 frost days.
Has the climate of Lockport warmed?
Yes: Lockport warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Lockport?
The wettest day measured in Lockport between 1940 and 2025 was 28 September 1967, with 84 mm of rain in 24 hours.
What was the windiest day in Lockport?
The windiest day measured in Lockport between 1940 and 2025 was 15 March 1959, with winds reaching 60.9 km/h.
What is the warmest month in Lockport?
The warmest month in Lockport is July (21.6 °C on average); the coldest is February (-3.5 °C).
How much does it rain in Lockport?
Lockport receives on average 1,003 mm of precipitation per year, spread over about 146 rainy days.
Is it sunny in Lockport?
Lockport gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Lockport?
The heaviest 24-hour snowfall measured in Lockport between 1940 and 2025 was 7 February 1942, with 27.9 cm.
Are there tropical nights in Lockport?
Yes: Lockport has on average 23 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Lockport?
In Lockport, between 1940 and 2025, the highest apparent temperature reached 38.1 °C on 3 September 1953, and the lowest was -32.3 °C on 17 January 1982.
Compare Lockport with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Lockport