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Built 2026-10-15 (15 October 2026)

Hyampom Weather Records (USC00044191)

Record envelope, standing records and threshold days for Hyampom (USC00044191), California, United States, with 93 years of record.

Key Facts for Hyampom

  • Hyampom (USC00044191) is a weather station in California, United States at 40.62 latitude and -123.46 longitude, 390 m (1,278 ft) above sea level.
  • The station reports from 1912 to 2004, 93 years of record.
  • 112 records set at Hyampom still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: California, United States, 40.62 latitude, -123.46 longitude.
  • Elevation: 390 m (1,278 ft).
  • Period of record: 1912 to 2004, 93 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Hyampom, with 2026 drawn through them The band shows the record high and record low for each calendar day at Hyampom. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -15-10-50510 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Hyampom. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Hyampom, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
Octn/an/an/an/a
Nov8.3 C (46.9 F)-1.7 C (28.9 F)n/an/a
Decn/a-10.6 C (12.9 F)n/an/a

Which Years Hold Standing Records

112 standing records
Standing records at Hyampom by the year they were set 112 records at Hyampom still stand. 1915 holds the most, with 80. 0204060801914: 321915: 8019141915
112 records at Hyampom still stand. 1915 holds the most, with 80.
Standing records at Hyampom by the year they were set
Year setStanding records
191432
191580

Wettest Day of Each Month

Dec: 180.1 mm (7.1 in)
Record daily precipitation for each month at Hyampom The wettest day on record for each calendar month at Hyampom. The most was 180.1 mm (7.1 in) on 4 December 1950. 050100150200 Jan: 100.3 mm (3.9 in), 1 January 1997 Jan Feb: 158.8 mm (6.3 in), 1 February 1915 Feb Mar: 60.7 mm (2.4 in), 25 March 2004 Mar Apr: 39.6 mm (1.6 in), 24 April 2003 Apr May: 24.1 mm (0.9 in), 1 May 1950 May Jun: 18.0 mm (0.7 in), 26 June 2001 Jun Jul: 25.4 mm (1.0 in), 11 July 1914 Jul Aug: 24.1 mm (0.9 in), 9 August 2000 Aug Sep: 55.9 mm (2.2 in), 5 September 1912 Sep Oct: 87.6 mm (3.4 in), 28 October 1950 Oct Nov: 71.1 mm (2.8 in), 6 November 2002 Nov Dec: 180.1 mm (7.1 in), 4 December 1950 Dec
The wettest day on record for each calendar month at Hyampom. The most was 180.1 mm (7.1 in) on 4 December 1950.
Record daily precipitation for each month at Hyampom
MonthRecord daily precipitation (mm)Date
Jan100.3 mm (3.9 in)1 January 1997
Feb158.8 mm (6.3 in)1 February 1915
Mar60.7 mm (2.4 in)25 March 2004
Apr39.6 mm (1.6 in)24 April 2003
May24.1 mm (0.9 in)1 May 1950
Jun18.0 mm (0.7 in)26 June 2001
Jul25.4 mm (1.0 in)11 July 1914
Aug24.1 mm (0.9 in)9 August 2000
Sep55.9 mm (2.2 in)5 September 1912
Oct87.6 mm (3.4 in)28 October 1950
Nov71.1 mm (2.8 in)6 November 2002
Dec180.1 mm (7.1 in)4 December 1950

Period of Record Coverage

1914 to 1914
Days with data per year at Hyampom 1 years of record at Hyampom, 1914 to 1914. 1 years have data for under 90 percent of days and are left out of rankings: 1914. 1914: 16 of 365 days
1 years of record at Hyampom, 1914 to 1914. 1 years have data for under 90 percent of days and are left out of rankings: 1914.
Days with data per year at Hyampom
YearDays with dataShare of yearComplete
1914164%No

Latest Records

0

No records were set at this station in the latest data.

Extremes by Year

1912 to 2004
Yearly extremes at Hyampom: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)8.3 C (46.9 F)19148.3 C (46.9 F)1
Coldest night (TNn)-10.6 C (12.9 F)1915-10.6 C (12.9 F)1
Wettest day (Rx1day)180.1 mm (7.1 in)195059.5 mm (2.3 in)18
Wettest five days (Rx5day)362.0 mm (14.3 in)1915130.8 mm (5.1 in)18
Longest dry spell (CDD)162 days200269 days18

Hottest day (TXx)

Hottest day (TXx) at Hyampom by year The hottest day of the year at Hyampom, 1912 to 2004. The record is 8.3 C (46.9 F) in 1914, marked on the chart; the median year is 8.3 C (46.9 F). 7.38.39.319201940196019802000Record: 8.3 C (46.9 F) in 1914
The hottest day of the year at Hyampom, 1912 to 2004. The record is 8.3 C (46.9 F) in 1914, marked on the chart; the median year is 8.3 C (46.9 F).
Hottest day (TXx) at Hyampom by year
YearHottest day (TXx)
1912n/a
1913n/a
19148.3 C (46.9 F)
1915n/a
1916n/a
1948n/a
1949n/a
1950n/a
1951n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a

Coldest night (TNn)

Coldest night (TNn) at Hyampom by year The coldest night of the year at Hyampom, 1912 to 2004. The record is -10.6 C (12.9 F) in 1915, marked on the chart; the median year is -10.6 C (12.9 F). -11.6-10.6-9.619201940196019802000Record: -10.6 C (12.9 F) in 1915
The coldest night of the year at Hyampom, 1912 to 2004. The record is -10.6 C (12.9 F) in 1915, marked on the chart; the median year is -10.6 C (12.9 F).
Coldest night (TNn) at Hyampom by year
YearColdest night (TNn)
1912n/a
1913n/a
1914n/a
1915-10.6 C (12.9 F)
1916n/a
1948n/a
1949n/a
1950n/a
1951n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Hyampom by year The wettest day of the year at Hyampom, 1912 to 2004. The record is 180.1 mm (7.1 in) in 1950, marked on the chart; the median year is 59.5 mm (2.3 in). 05010015020019201940196019802000Record: 180.1 mm (7.1 in) in 1950
The wettest day of the year at Hyampom, 1912 to 2004. The record is 180.1 mm (7.1 in) in 1950, marked on the chart; the median year is 59.5 mm (2.3 in).
Wettest day (Rx1day) at Hyampom by year
YearWettest day (Rx1day)
191268.6 mm (2.7 in)
191354.6 mm (2.1 in)
191433.5 mm (1.3 in)
1915158.8 mm (6.3 in)
19168.4 mm (0.33 in)
194833.0 mm (1.3 in)
194945.7 mm (1.8 in)
1950180.1 mm (7.1 in)
195184.3 mm (3.3 in)
1996100.3 mm (3.9 in)
1997100.3 mm (3.9 in)
199858.4 mm (2.3 in)
199958.2 mm (2.3 in)
200060.5 mm (2.4 in)
200150.8 mm (2.0 in)
200284.6 mm (3.3 in)
200355.9 mm (2.2 in)
2004122.7 mm (4.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Hyampom by year The wettest five days of the year at Hyampom, 1912 to 2004. The record is 362.0 mm (14.3 in) in 1915, marked on the chart; the median year is 130.8 mm (5.1 in). 010020030040019201940196019802000Record: 362.0 mm (14.3 in) in 1915
The wettest five days of the year at Hyampom, 1912 to 2004. The record is 362.0 mm (14.3 in) in 1915, marked on the chart; the median year is 130.8 mm (5.1 in).
Wettest five days (Rx5day) at Hyampom by year
YearWettest five days (Rx5day)
1912148.1 mm (5.8 in)
191389.4 mm (3.5 in)
191481.0 mm (3.2 in)
1915362.0 mm (14.3 in)
19168.4 mm (0.33 in)
194885.5 mm (3.4 in)
1949113.5 mm (4.5 in)
1950266.6 mm (10.5 in)
1951166.1 mm (6.5 in)
1996189.3 mm (7.5 in)
1997304.8 mm (12.0 in)
1998165.9 mm (6.5 in)
1999109.7 mm (4.3 in)
2000108.9 mm (4.3 in)
2001113.1 mm (4.5 in)
2002325.1 mm (12.8 in)
200395.5 mm (3.8 in)
2004156.3 mm (6.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Hyampom by year The longest dry spell of the year at Hyampom, 1912 to 2004. The record is 162 days in 2002, marked on the chart; the median year is 69 days. 05010015020019201940196019802000Record: 162 days in 2002
The longest dry spell of the year at Hyampom, 1912 to 2004. The record is 162 days in 2002, marked on the chart; the median year is 69 days.
Longest dry spell (CDD) at Hyampom by year
YearLongest dry spell (CDD)
191263 days
191394 days
191466 days
191515 days
191646 days
194872 days
194960 days
195083 days
195199 days
199611 days
199728 days
1998108 days
199994 days
200062 days
200189 days
2002162 days
200397 days
200430 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

  • Data for Hyampom standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Hyampom 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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