Grow Dates / Times

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

Astronomical Solstice/Equinox Dates

2019 Vernal Equinox: Wed Mar 20 2019 14:58:05 GMT-0700 (PDT)

2019 Summer Solstice: Fri Jun 21 2019 08:53:44 GMT-0700 (PDT)

2019 Autumnal Equinox: Mon Sep 23 2019 00:49:29 GMT-0700 (PDT)

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)

Meteorological Dates

First day of spring 2019: Fri Mar 01 2019

First day of summer 2019: Sat Jun 01 2019

First day of fall 2019: Sun Sep 01 2019

First day of winter 2019: Sun Dec 01 2019

First day of spring 2020: Sun Mar 01 2020

Sun Information

For today, Wednesday March 20 2019

Sunrise: 07:09:53

Sunset: 19:20:11

Transit: 13:15:02

Civil twilight begin: 06:43:56

Civil twilight end: 19:46:08

Nautical twilight begin: 06:13:29

Nautical twilight end: 20:16:35

Astronomical twilight begin: 05:42:35

Astronomical twilight end: 20:47:29

For tomorrow, Thursday March 21 2019

Sunrise: 07:08:22

Sunset: 19:21:05

Transit: 13:14:44

Civil twilight begin: 06:42:24

Civil twilight end: 19:47:03

Nautical twilight begin: 06:11:55

Nautical twilight end: 20:17:32

Astronomical twilight begin: 05:40:58

Astronomical twilight end: 20:48:30

Frost Dates and Growing Period

First frost date (2018): Mon Dec 03 2018

Last frost date (2019): Mon Jan 28 2019

Number of days in the 2019 growing season: 314

Note that frost dates are derived from historical patterns.