Important environmental information for growing here in Santa Clara county...
Astronomical Solstice/Equinox Dates
2025 Vernal Equinox: Thu Mar 20 2025 02:01:03 GMT-0700 (PDT)
2025 Summer Solstice: Fri Jun 20 2025 19:41:49 GMT-0700 (PDT)
2025 Autumnal Equinox: Mon Sep 22 2025 11:19:00 GMT-0700 (PDT)
2025 Winter Solstice: Sun Dec 21 2025 07:02:36 GMT-0800 (PST)
2026 Vernal Equinox: Fri Mar 20 2026 07:45:02 GMT-0700 (PDT)
Meteorological Dates
First day of spring 2025: Sat Mar 01 2025
First day of summer 2025: Sun Jun 01 2025
First day of fall 2025: Mon Sep 01 2025
First day of winter 2025: Mon Dec 01 2025
First day of spring 2026: Sun Mar 01 2026
Sun Information
For today, Monday April 21 2025
Sunrise: 06:24:07
Sunset: 19:48:42
Transit: 13:06:24
Civil twilight begin: 05:56:50
Civil twilight end: 20:15:59
Nautical twilight begin: 05:24:02
Nautical twilight end: 20:48:47
Astronomical twilight begin: 04:49:36
Astronomical twilight end: 21:23:13
For tomorrow, Tuesday April 22 2025
Sunrise: 06:22:49
Sunset: 19:49:36
Transit: 13:06:13
Civil twilight begin: 05:55:28
Civil twilight end: 20:16:58
Nautical twilight begin: 05:22:34
Nautical twilight end: 20:49:52
Astronomical twilight begin: 04:47:58
Astronomical twilight end: 21:24:28
Frost Dates and Growing Period
First frost date (2024): Mon Dec 02 2024
Last frost date (2025): Sun Feb 23 2025
Number of days in the 2025 growing season: 292
Note that frost dates are derived from historical patterns.