Grow Dates / Times

Important environmental information for growing here in Santa Clara county...

Astronomical Solstice/Equinox Dates

2021 Autumnal Equinox: Wed Sep 22 2021 12:20:30 GMT-0700 (PDT)

2021 Winter Solstice: Tue Dec 21 2021 07:58:54 GMT-0800 (PST)

2022 Vernal Equinox: Sun Mar 20 2022 08:32:53 GMT-0700 (PDT)

2022 Summer Solstice: Tue Jun 21 2022 02:13:18 GMT-0700 (PDT)

2022 Autumnal Equinox: Thu Sep 22 2022 18:03:41 GMT-0700 (PDT)

Meteorological Dates

First day of fall 2021: Wed Sep 01 2021

First day of winter 2021: Wed Dec 01 2021

First day of spring 2022: Tue Mar 01 2022

First day of summer 2022: Wed Jun 01 2022

First day of fall 2022: Thu Sep 01 2022

Sun Information

For today, Tuesday September 21 2021

Sunrise: 06:55:56

Sunset: 19:04:52

Transit: 13:00:24

Civil twilight begin: 06:29:59

Civil twilight end: 19:30:49

Nautical twilight begin: 05:59:33

Nautical twilight end: 20:01:15

Astronomical twilight begin: 05:28:41

Astronomical twilight end: 20:32:07

For tomorrow, Wednesday September 22 2021

Sunrise: 06:56:46

Sunset: 19:03:20

Transit: 13:00:03

Civil twilight begin: 06:30:50

Civil twilight end: 19:29:16

Nautical twilight begin: 06:00:26

Nautical twilight end: 19:59:40

Astronomical twilight begin: 05:29:37

Astronomical twilight end: 20:30:29

Frost Dates and Growing Period

First frost date (2021): Wed Dec 15 2021

Last frost date (2022): Fri Feb 25 2022

Number of days in the 2021 growing season: 292

Note that frost dates are derived from historical patterns.