My winter bicycling cred is nonexistent. There are families I know who ride in snow and ice and purchase things like studded tires. I live in California for a reason—I would rather tackle the mega-hills of San Francisco than deal with being cold or hot. When I got accepted to Berkeley for my PhD I was living in Boston, and I used to read the weather reports for San Francisco every morning, longingly. I’ve never looked back.
So when I learned that temperatures this week would be below freezing and that we might get snow, I was horrified. San Francisco, you hussy!
But I was not completely unprepared. Last year temperatures in the city dropped below freezing as well. (Thanks a lot, anthropogenic climate change.) As an adherent of the “no bad weather, only bad gear” school when it comes to rain, I decided to try the same approach for cold.
Most of the time when it’s cold the kids go into the Bullitt, because although I generally consider my children intelligent, when it comes to dressing for the weather they are complete idiots. “I don’t need my jacket! I’m too cold! Wah!” Repeat ad infinitum. The canopy on the Bullitt is advertised as a rain canopy, but it also blocks wind and warms up like a greenhouse with a kid or two inside. They wear jackets in there but only because it’s cold in the garage before they get in, and we give them a blanket, but mostly they use it to play peekaboo. Once I shoved my daughter under there in her pajamas with a blanket over her to get my son to school when Matt was away, and she slept the whole trip. I don’t think she even realized she was not in a bed (we get earthquakes here, the bouncing was a non-issue).
A trailer would work the same way, of course.
However we do occasionally have to get the kids around in a child seat. This morning, alas, was one of those times. I took my daughter to preschool solo, and Matt had the Bullitt. What she wore: regular shirt and pants, because her preschool is well-heated. For kids’ outerwear, given that kids are not moving on the bike but have to deal with a lot of wind, I wanted both insulation and windproofing. So over that she got her Muddy Buddy, her ski jacket, her ski mittens, her rain boots, a fleece balaclava, and a stadium blanket that’s fleece on one side and waterproofed fabric on the other. Result: she said she was warm and kept asking me to take the blanket off. So when we got to preschool I took the blanket off. “I’m too cold!!!” Quelle surprise.

This is an outrageously stupid look but the only thing that bothers me about it is that other parents can’t see me smiling when they pass by and I worry that I’m coming off as rude.
In serious cold I would add her ski goggles over the balaclava, but that hasn’t happened yet. I suspect this level of gear would serve a non-San Francisco kid in much more bracing temperatures. With all the waterproofing, it would shrug off sleet as well. Not that I would feel comfortable riding a bike up and down hills on sleet-covered streets.
And how did I dress today when it’s 30 degrees Fahrenheit (-1 Celsius, 272 Kelvin) in San Francisco? On the top: merino wool long underwear with a cashmere sweater over. On the bottom: merino wool long underwear and socks, with dress pants over them, and leather loafers. Outerwear: Long wool coat, cashmere scarf, silk balaclava, merino wool gloves, ski mittens, rain pants, and rain booties. The rain pants and rain booties are waterproof, so they also block all wind (that means I didn’t really need the long underwear for my legs, but the heat in my office is unpredictable so I wore them anyway). Is this total overkill? Absolutely. The result? I got overheated. I call that an unqualified success.
I am a total weather wimp, as mentioned, so I’m guessing that my ridiculous getup would keep a normal person comfortable at temperatures way below freezing. And everything that I don’t wear once I get to the office can be stuffed into my helmet when I get to work, so it’s space-efficient.
The insight to ditch biking gloves and jump directly to ski mittens comes from the many fine riding parents of Rosa Parks Elementary School. Thanks, guys. I credit the family riders of Portland for the insight of wearing merino wool long underwear under everything, a tip I’ve passed on to my chronically cold mom, who is even more delighted than I am. Wearing rain gear in the cold is my personal innovation. I did it because I already had the rain gear, but as a windstopper the rain gear is unparalleled.
And that’s how I ride when it gets cold(ish) in San Francisco. I may look stupid, but I’m still having fun.