Is 99 degree a fever in 4 year old?

Lauren • Had my sweet girl 02/22/20 - 5 weeks early due to rare genetic disorder💗 Had my handsome man 09/30/22 - 3 weeks early due to low birth weight💙

Is 99 degrees a fever in a 4 year old? My daughter has had a cough and stuffy nose for a couple days and after nap today she woke up and was acting normal but felt warm. I took her armpit temp and it was 99 exactly. Is this a fever?