us_temp: US Temperature Data

In usdata: Data on the States and Counties of the United States

US Temperature Data

Description

A representative set of monitoring locations were taken from NOAA data that had both years of interest (1950 and 2022). The information was collected so as to spread the measurements across the continental United States. Daily high and low temperatures are given for each of 24 weather stations.

Usage

us_temp

Format

A data frame with 17250 observations on the following 9 variables.

station

Station ID, measurements from 24 stations.

name

Name of the station.

latitude

Latitude of the station.

longitude

Longitude of the station.

elevation

Elevation of the station.

date

Date of observed temperature.

tmax

High temp for the observed day.

tmin

Low temp for the observed day.

year

Factor variable for year, levels: 1950 and 2022.

Details

Please keep in mind that these are two annual snapshots from a few dozen arbitrarily selected weather stations. A complete analysis would consider more than two years of data and a more precise random sample uniformly distributed across the United States.

Source

https://www.ncei.noaa.gov/cdo-web/, retrieved 2023-09-23.

Examples

library(ggplot2)
library(maps)
library(sf)
library(dplyr)

# Summarize temperature by station and year for plotting
summarized_temp <- us_temp |>
  group_by(station, year, latitude, longitude) |>
  summarize(tmax_med = median(tmax, na.rm = TRUE), .groups = "drop") |>
  mutate(plot_shift = ifelse(year == "1950", 0, 2))

# Make a map of the US as a baseline
usa <- st_as_sf(maps::map("state", fill = TRUE, plot = FALSE))

# Layer the US map with summarized temperatures
ggplot(data = usa) +
  geom_sf() +
  geom_point(
    data = summarized_temp,
    aes(x = longitude + plot_shift, y = latitude, fill = tmax_med, shape = year),
    color = "black", size = 3
  ) +
  scale_fill_gradient(high = "red", low = "yellow") +
  scale_shape_manual(values = c(21, 24)) +
  labs(
    title = "Median high temperature, 1950 and 2022",
    x = "Longitude",
    y = "Latitude",
    fill = "Median\nhigh temp",
    shape = "Year"
  )

usdata documentation built on June 22, 2024, 9:57 a.m.