San Jose Intl Arpt

Weather station · 37.4°N 121.9°W · 13 m above sea level

ICAO KSJCStation data since 1893

Right now19.4°C00:53 UTC · 7 h agoSource: NOAA METAR

Today so far19.4°/14.4°High at 00:53 UTC · low at 06:53 UTCSource: NOAA METAR and SYNOP

All-time record high42.8°CWednesday, 14 June 2000 · highest in available records since 1893Source: NOAA GHCN-Daily

All-time record low−7.8°CSaturday, 6 January 1894 · lowest in available records since 1893Source: NOAA GHCN-Daily

On this day · 23 September

Record high

37.8°C

in 1939

Record low

1.7°C

in 1903

Average high

26.3°C

all years on record

Record watch

18.4°C short of the record for 23 September

Today’s high 19.4°C against 37.8°C in 1939. A reading that beats it is flagged here automatically, once a second cycle confirms it.

All-time record high

42.8°C

Date: Wednesday, 14 June 2000
Time of day: Not recorded. The daily archive stores the day, not the hour.
Location: San Jose Intl Arpt, United States
Position: 37.36°N 121.92°W · 13 m

Highest highest in available records since 1893. Source: NOAA GHCN-Daily.

All-time record low

−7.8°C

Date: Saturday, 6 January 1894
Time of day: Not recorded. The daily archive stores the day, not the hour.
Location: San Jose Intl Arpt, United States
Position: 37.36°N 121.92°W · 13 m

Highest and lowest lowest in available records since 1893. Source: NOAA GHCN-Daily.

Where San Jose Intl Arpt is

37.36°N 121.92°W

Every year on record

1893 to 2026

Annual average · °C

Trend over 103 years with data: +0.13 °C per decade

Source: NOAA GHCN-Daily. Years the station did not cover are left as gaps, never joined across. The dashed line is a least squares trend through the years that have data.

Records by month

Jan

26.1°

−7.8°

Feb

27.2°

−4.4°

Mar

31.1°

−3.9°

Apr

35.0°

−3.3°

May

38.9°

0.0°

Jun

42.8°

0.6°

Jul

42.2°

4.4°

Aug

40.6°

3.9°

Sep

41.1°

Recent days

Daily highest and lowest air temperature at San Jose Intl Arpt, most recent first.
Day	High	At	Low	At
2026-09-23	19.4°C	00:53 UTC	14.4°C	06:53 UTC
2026-09-22	23.3°C	20:53 UTC	15.0°C	14:53 UTC

Nearby stations

Data sources for this page

Where each figure on this page comes from.
Figure	Source	Type
Right now, today so far	NOAA Aviation Weather Center (METAR) and NOAA NWS WMO bulletins (SYNOP)	Measured, station
All-time, monthly and on-this-day records	NOAA NCEI Global Historical Climatology Network daily (GHCN-Daily), 1893 to 2026	Measured, station
Nearby stations and distances	Computed from station positions in our own database	Calculated