With the solstice upon us, Bike Month is over and the hot months are looming. I just made you all this chart. The temperatures tend to correspond to the mid-points between each solstice or equinox due to seasonal lag, with details of temperature and rainfall dependent upon your own local climate.

Seasons

midwinter Feb 2-4
spring equinox Mar 20
peak spring May 5-6
summer solstice June 20-21
midsummer Aug 6-7
autumnal equinox Sept 22-23
peak autumn Nov 6-7
winter solstice Dec 21-22


Monthly Events

May is Bike Month in most places.
Bike To Work Day is often a Friday some time in this month but may vary by location.
The second Sunday in May is Mother's Day. Ask for bike stuff!

The third Sunday in June is Father's Day. This is at the same time as graduations in the retail calendar, "Dads and Grads." Ask for bike stuff!
Sometime in the 20-22nd of June is the summer solstice. It's the longest daylight in the Northern Hemisphere and so if you can't find time to bike to work that day, you may never.

Daylight Saving Time Table

Daylight saving time in the USA starts on the third Sunday in March. Spring forward!

Daylight Saving Time in the USA ends on the second Sunday in November. Fall back!

Year
Start
End

2017
March 12
November 5


2018
March 11
November 4


2019
March 10
November 3


Here's a neat web app that shows you sunrise and sunset times, and length of day, and usable twilight. Centered on my home town but hit the link and do your own search by ZIP code
Sunrise and sunset times in Orangevale

I have looked in the Apple app store and there are several iPhone apps that will give you an alarm based on sunrise or civil twilight. Perfect if you want to be on the floor and out the door as soon as you don't need a headlight.

Time to buy bike stuff?!?!
REI Member Sale and Coupon Timing