Grow Dates / Times

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

Astronomical Solstice/Equinox Dates

2019 Winter Solstice: Sat Dec 21 2019 20:18:56 GMT-0800 (PST)

2020 Vernal Equinox: Thu Mar 19 2020 20:49:35 GMT-0700 (PDT)

2020 Summer Solstice: Sat Jun 20 2020 14:43:02 GMT-0700 (PDT)

2020 Autumnal Equinox: Tue Sep 22 2020 06:30:27 GMT-0700 (PDT)

2020 Winter Solstice: Mon Dec 21 2020 02:02:26 GMT-0800 (PST)

Meteorological Dates

First day of winter 2019: Sun Dec 01 2019

First day of spring 2020: Sun Mar 01 2020

First day of summer 2020: Mon Jun 01 2020

First day of fall 2020: Tue Sep 01 2020

First day of winter 2020: Tue Dec 01 2020

Sun Information

For today, Wednesday January 22 2020

Sunrise: 07:17:25

Sunset: 17:21:42

Transit: 12:19:33

Civil twilight begin: 06:49:29

Civil twilight end: 17:49:38

Nautical twilight begin: 06:17:47

Nautical twilight end: 18:21:20

Astronomical twilight begin: 05:46:46

Astronomical twilight end: 18:52:21

For tomorrow, Thursday January 23 2020

Sunrise: 07:16:50

Sunset: 17:22:47

Transit: 12:19:48

Civil twilight begin: 06:48:58

Civil twilight end: 17:50:39

Nautical twilight begin: 06:17:19

Nautical twilight end: 18:22:18

Astronomical twilight begin: 05:46:20

Astronomical twilight end: 18:53:17

Frost Dates and Growing Period

First frost date (2019): Sun Dec 08 2019

Last frost date (2020): Mon Feb 10 2020

Number of days in the 2020 growing season: 309

Note that frost dates are derived from historical patterns.