Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Westwood Threshold Days by Year (USC00049599)

13 fixed thresholds counted per year at Westwood (USC00049599): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Westwood Thresholds

  • Westwood: days with 10 mm (0.39 in) or more of precipitation in 22 years, most in 1950 with 30.
  • Westwood: days with 25 mm (0.98 in) or more of precipitation in 22 years, most in 1950 with 9.
  • Westwood: days with 50 mm (1.97 in) or more of precipitation in 12 years, most in 1922 with 2.
  • Westwood: days with a maximum temperature at or above 30 C (86 F) in 6 years, most in 1950 with 40.
  • 13 fixed thresholds have at least one qualifying day at Westwood.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Westwood Days per year at Westwood with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 40 in 1950. 0102030401921: 121922: 251923: 171949: 221950: 401951: 31192119221923194919501951
Days per year at Westwood with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 40 in 1950.
Days at or above 30 C (86 F) per year at Westwood
YearDaysDecade average
19211218
19222518
19231718
19492222
19504035.5
19513135.5
First to last qualifying date each year at Westwood For each year, a bar from the first to the last day at Westwood meeting 30 C (86 F). 1921: 22 June 1921 to 27 September 19211922: 24 June 1922 to 19 September 19221923: 30 June 1923 to 9 September 19231949: 10 June 1949 to 23 September 19491950: 31 May 1950 to 6 September 19501951: 15 June 1951 to 16 September 1951192119221923194919501951JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Westwood meeting 30 C (86 F).
First to last qualifying date each year at Westwood
YearFirst dateLast date
19211921-06-221921-09-27
19221922-06-241922-09-19
19231923-06-301923-09-09
19491949-06-101949-09-23
19501950-05-311950-09-06
19511951-06-151951-09-16

Every Fixed Threshold

Fixed thresholds at Westwood
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days640195031
35 C (95 F): Days3319503
90 F (32.2 C): Days62019504
0 C (32 F): Ice days (max640195140
0 C (32 F): Frost days (min52321922227
-10 C (14 F): Days with min567194955
-20 C (-4 F): Days with min52019491
10 mm (0.39 in): Days with 10 mm or more rain2230195030
25 mm (0.98 in): Days with 25 mm or more rain22919509
50 mm (1.97 in): Days with 50 mm or more rain12219221
10 cm (3.9 in): Days with 10 cm or more snowfall316195116
25 cm (9.8 in): Days with 25 cm or more snowfall3219492
50 cm (19.7 in): Days with 50 cm or more snowfall1119511

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1921.

Download the Data

  • Data for Westwood threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).