California · THREADEX · 1893–2026

Riverside, CA

33.953°N, 117.435°W · station RALthr · 134 years of record
105°F
forecast high · Jul 15

7-Day Forecast

NWS NDFD forecast high temperature for Riverside.
94°MON7/1397°TUE7/14105°WED7/15102°THU7/1694°FRI7/1794°SAT7/1895°SUN7/19

This Day in History · Jul 15

Today ranks

#4 / 126
warmest Jul 15 in 126 yrs of record

Hottest Jul 15 ever

108°F
set in 1978

Coolest Jul 15 ever

82°F
set in 1907

Hottest Jul 15 — Year by Year

Every year's high on Jul 15 at Riverside. The forecast line shows where today lands; the ringed bar is the hottest on record.
82951081893: 97°F1894: 100°F1895: 102°F1902: 97°F1903: 92°F1904: 88°F1905: 86°F1906: 87°F1907: 82°F1908: 97°F1909: 93°F1910: 96°F1911: 105°F1912: 99°F1913: 93°F1914: 88°F1915: 91°F1916: 85°F1917: 97°F1918: 86°F1919: 94°F1920: 96°F1921: 98°F1922: 102°F1923: 94°F1924: 100°F1925: 103°F1926: 102°F1927: 88°F1928: 98°F1929: 105°F1930: 106°F1931: 92°F1932: 87°F1933: 90°F1934: 89°F1935: 105°F1936: 98°F1937: 91°F1938: 95°F1939: 97°F1940: 105°F1941: 101°F1942: 94°F1943: 82°F1944: 87°F1945: 93°F1946: 96°F1947: 90°F1948: 96°F1949: 97°F1950: 89°F1951: 94°F1952: 88°F1953: 92°F1954: 105°F1955: 98°F1956: 89°F1957: 101°F1958: 86°F1959: 93°F1960: 98°F1961: 95°F1962: 82°F1963: 94°F1964: 100°F1965: 90°F1966: 95°F1967: 97°F1968: 87°F1969: 92°F1970: 94°F1971: 91°F1972: 95°F1973: 86°F1974: 96°F1975: 92°F1976: 88°F1977: 98°F1978: 108°F1979: 101°F1980: 96°F1981: 93°F1982: 92°F1984: 98°F1985: 95°F1986: 90°F1987: 92°F1988: 90°F1989: 93°F1990: 94°F1991: 91°F1992: 93°F1993: 86°F1994: 93°F1995: 98°F1996: 91°F1997: 95°F1998: 103°F1999: 92°F2000: 96°F2001: 89°F2002: 97°F2003: 101°F2004: 102°F2005: 93°F2006: 106°F2007: 94°F2008: 96°F2009: 96°F2010: 104°F2011: 83°F2012: 94°F2013: 94°F2014: 88°F2015: 91°F2016: 97°F2017: 101°F2018: 98°F2019: 100°F2020: 90°F2021: 95°F2022: 97°F2023: 101°F2024: 97°F2025: 87°F105° forecast189320251978

The Numbers

Forecast high · Jul 15105°F
Hottest this date since2006
This-date record108°F
This-date rank#4 of 126
Hottest at any time since2025
All-time record118°F (1917)
Odds to tie/break54.0% (daily)
Period of record1893–2026

Record Book

The hottest and coldest ever recorded at Riverside in each calendar month, and for the whole 1893–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan94°F192319°F1950
Feb94°F192124°F1903
Mar102°F191625°F1903
Apr105°F198929°F1970
May110°F198433°F1915
Jun118°F191735°F1894
Jul118°F192541°F1948
Aug113°F192640°F1902
Sep117°F202037°F1902
Oct109°F198030°F1971
Nov100°F201023°F1950
Dec94°F195821°F1911
All-time118°F191719°F1950

2026 Records So Far

Records set or tied at Riverside so far this year — through Jul 11.

Record Highs in 2026

9 broke
plus 1 tied — daily record highs set this year
Monthly high record this year: Mar (102°F)

Record Lows in 2026

0 broke
plus 0 tied — daily record lows set this year

Hot Streaks

Current run

9 days
consecutive days with a high ≥ 90°F

Longest ever

66 days
record run, ended Aug 17 1981

So far in 2026

38 days
days with a high ≥ 90°F this year

Climate Normals

Normal high & low by month, from Riverside's own 1991–2020 record. Today's normal high: 94°F · forecast is +11° vs normal.
Jan: 69°FJan: 44°FFeb: 69°FFeb: 45°FMar: 73°FMar: 48°FApr: 77°FApr: 50°FMay: 81°FMay: 55°FJun: 88°FJun: 60°FJul: 94°FJul: 64°FAug: 96°FAug: 65°FSep: 93°FSep: 62°FOct: 84°FOct: 56°FNov: 76°FNov: 48°FDec: 68°FDec: 43°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise4:48 AM
Sunset7:02 PM
Solar noon11:55 AM
Daylight14h 14m · losing 6 min/wk
Local standard time (no DST), level horizon.

Location

33.95°N, 117.44°W

Nearby Stations

Long Beach, CA41 mi WLos Angeles Downtown, CA46 mi WPalm Springs, CA54 mi ELos Angeles Airport, CA54 mi WBurbank Glendale Pasadena, CA55 mi WPalmdale, CA59 mi NW

The Last 6 Weeks

Riverside's observed daily high for the last six weeks — a white ring marks any day that broke or tied its daily record for that date.
Riverside, CA — last six weeks of daily high

2026 So Far

Every day this year against Riverside's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.
Riverside, CA — 2026 daily high trace
Download year chart

Every Day Since 1893

Each cell is one day's high at Riverside, coloured by temperature — 134 years of record, so heat waves read as warm streaks and cold snaps as blue.
Riverside, CA daily high heat map 1893–2026

Days Above the Mark

How many days a year hit a given high at Riverside — counted through Jul 15 each year, so you can see whether 2026 is running hot. Pick a threshold:
38 days ≥90°F so far in 2026 — tied for the 18th most in 134 years. Normal for this point: 28. Record: 50 in 1984.

Share Card

A ready-to-share summary of Riverside's outlook — post it, or link this page.
Riverside, CA hot share card
Download card
See Riverside on coldestsince.com →
Hottest Since · Browse all states · See where it's coldest → coldestsince.com
part of Weather Trader · supported by Substack Subscribers · data: NWS NDFD forecast + NOAA/ACIS ThreadEx records · updated 2026-07-13T12:58:10Z
© 2026 Weather Trader · All rights reserved