Ontario Site Records


Site Lat, Lon: 43.25941° N, -77.37331° W
Site Elevation: 99.85 m
Length Of Climate Record: 2873 Days

Record Value Time Clickable Thumbnail
Maximum Temperature 93.58°F 2020-06-10 21:45 UTC ?
Minimum Temperature -7.73°F 2022-01-22 12:10 UTC ?
Minimum High Temperature 8.28°F 2022-01-15 19:40 UTC ? ?
Maximum Low Temperature 76.07°F 2018-08-28 11:15 UTC ? ?
Maximum Daily Precipitation 3.411 in 2020-07-11 ? ?
Maximum Sonic Wind 32.52 mph from 253.95° 2022-03-06 19:35 UTC ?
Maximum Sonic Gust 57.59 mph from 245.87° 2022-03-06 20:55 UTC ?
Maximum Prop Wind 31.20 mph from 253.30° 2022-03-06 19:35 UTC ?
Maximum Prop Gust 55.10 mph from 240.13° 2018-04-04 18:00 UTC ?
Maximum Sea-Level Pressure 1047.09 hPa 2020-01-17 16:15 UTC ?
Minimum Sea-Level Pressure 979.56 hPa 2024-01-10 06:30 UTC ?
Maximum Dew Point 79.36°F 2018-07-02 18:10 UTC ?
Minimum Dew Point -11.73°F 2022-01-22 12:10 UTC ?
Minimum Relative Humidity 10.00 % 2022-04-26 00:35 UTC ?
Maximum Daily Solar Insolation 31.43 MJ/m² 2019-06-08 ? ?
Maximum Heat Index 104.68°F 2018-07-02 19:00 UTC ?
Minimum Wind Chill -23.01°F 2023-02-04 02:50 UTC ?
Warmest Daily Minimum Heat Index 76.73°F 2018-08-28 11:15 UTC ?
Coldest Daily Maximum Wind Chill -6.32°F 2018-01-06 02:50 UTC ? ?
Maximum 24 Hour Precipitation 3.411 in 2020-07-11 01:50 UTC to 2020-07-12 01:50 UTC ? ?
Maximum 24 Hour Temperature Rise 39.36°F 2023-02-04 16:20 UTC to 2023-02-05 16:20 UTC ? ?
Maximum 24 Hour Temperature Fall -45.71°F 2020-03-20 17:15 UTC to 2020-03-21 17:15 UTC ? ?
Maximum Diurnal Temperature Range 42.53°F 2019-02-08 ? ?
Minimum Diurnal Temperature Range 2.03°F 2017-01-03 ? ?
Most Windy Day 22.64 mph 2016-11-21 ? ?
Least Windy Day 1.32 mph 2024-01-27 ? ?
Highest Average Gust Day 38.74 mph 2016-11-21 ? ?
Maximum 3 Hour Temperature Rise 29.53°F 2023-04-05 14:00 UTC to 2023-04-05 17:00 UTC ?
Maximum 3 Hour Temperature Fall -32.86°F 2023-04-05 16:30 UTC to 2023-04-05 19:30 UTC ?
Maximum 1 Hour Temperature Rise 19.94°F 2017-02-25 05:20 UTC to 2017-02-25 06:20 UTC ?
Maximum 1 Hour Temperature Fall -29.77°F 2023-04-05 18:00 UTC to 2023-04-05 19:00 UTC ?
Maximum 15 Minute Temperature Rise 16.89°F 2017-02-25 05:25 UTC to 2017-02-25 05:40 UTC ?
Maximum 15 Minute Temperature Fall -17.09°F 2022-04-25 23:45 UTC to 2022-04-26 00:00 UTC ? ?
Maximum 3 Hour Pressure Rise
(*Converted To Sea Level)
11.58 hPa 2019-01-01 09:45 UTC to 2019-01-01 12:45 UTC ?
Maximum 3 Hour Pressure Fall
(*Converted To Sea Level)
-11.27 hPa 2019-01-01 00:45 UTC to 2019-01-01 03:45 UTC ?
Maximum 1 Hour Pressure Rise
(*Converted To Sea Level)
5.3 hPa 2019-04-15 02:45 UTC to 2019-04-15 03:45 UTC ?
Maximum 1 Hour Pressure Fall
(*Converted To Sea Level)
-7.36 hPa 2018-01-15 22:00 UTC to 2018-01-15 23:00 UTC ?
Maximum 15 Minute Pressure Rise
(*Converted To Sea Level)
4.5 hPa 2022-04-25 23:35 UTC to 2022-04-25 23:50 UTC ?
Maximum 15 Minute Pressure Fall
(*Converted To Sea Level)
-7.04 hPa 2018-01-15 22:00 UTC to 2018-01-15 22:15 UTC ?
Maximum 5 cm Soil Temperature 87.26°F 2020-08-01 19:20 UTC ?
Maximum 25 cm Soil Temperature 88.84°F 2020-07-27 07:35 UTC ?
Maximum 50 cm Soil Temperature 74.66°F 2020-08-12 04:35 UTC ?
Minimum 5 cm Soil Temperature 29.66°F 2017-01-08 10:05 UTC ?
Minimum 25 cm Soil Temperature 32.36°F 2019-02-03 21:05 UTC ?
Minimum 50 cm Soil Temperature 32.36°F 2019-03-10 19:05 UTC ?
Maximum 5 cm Soil Moisture 0.5 m3/m3 2016-11-27 10:00 UTC ?
Maximum 25 cm Soil Moisture 0.36 m3/m3 2016-11-27 09:55 UTC ?
Maximum 50 cm Soil Moisture 0.46 m3/m3 2021-10-27 01:20 UTC ?
Maximum Total Column Soil Moisture
(Unphysical - For Comparison Purposes)
1.27 m3/m3 2016-11-27 10:10 UTC ?
Minimum 5 cm Soil Moisture 0.09 m3/m3 2021-06-07 12:55 UTC ?
Minimum 25 cm Soil Moisture 0.13 m3/m3 2018-07-22 00:05 UTC ?
Minimum 50 cm Soil Moisture 0.13 m3/m3 2021-06-30 19:40 UTC ?
Minimum Total Column Soil Moisture
(Unphysical - For Comparison Purposes)
0.36 m3/m3 2022-08-19 07:55 UTC ?
Maximum 3 Hour Precipitation 3.225 in 2020-07-11 17:55 UTC to 2020-07-11 20:55 UTC ?
Maximum 1 Hour Precipitation 2.793 in 2020-07-11 18:15 UTC to 2020-07-11 19:15 UTC ?
Maximum 15 Minute Precipitation 1.278 in 2020-07-11 18:35 UTC to 2020-07-11 18:50 UTC ?
Maximum 5 Minute Precipitation 0.521 in Ending 2020-07-11 18:45 UTC ?
Maximum Daily Average Snow Depth 15.58 in 2019-01-21 ? ?
Maximum 5 Minute Irradiance 1174.97 W/m2 2022-04-25 17:15 UTC ?
Highest Lifted Condensation Level 626.84 hPa 2022-04-26 00:35 UTC ?
Largest Super Adiabat
(Minimum 9m-2m ΔT)
-6.13°F 2017-06-14 11:55 UTC ?
Largest Inversion
(Maximum 9m-2m ΔT)
14.59°F 2022-11-10 22:00 UTC ?
Maximum 9 m Temperature 93.51°F 2020-06-10 21:45 UTC ?
Minimum 9 m Temperature -3.48°F 2022-01-22 12:10 UTC ?